{"title":"Oval","description":null,"products":[{"product_id":"4mo4-4-x-4-oval-b-vent-pipe","title":"4MO4 - Type-B Gas Vent Oval Pipe - 4\" X 48\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO4 - Type-B Gas Vent Oval Pipe - 4\" X 48\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811100\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":43580133015797,"sku":"4MO4","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MO4_1_wm.jpg?v=1759384989"},{"product_id":"4mof-4-oval-b-vent-adjustable-flashing","title":"4MOF - 4\" Oval B-Vent Adjustable Flashing","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MOF – Oval B-Vent Adjustable Flashing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Metal-Fab 4MOF Oval B-Vent Adjustable Flashing is designed to provide a secure, weather-resistant seal where vent pipes penetrate the roof. Built for durability and ease of installation, this flashing accommodates oval B-Vent systems and adjusts to fit varying roof pitches, ensuring proper venting performance while protecting against water infiltration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Metal-Fab\u003c\/li\u003e\n\u003cli\u003ePart Number: 4MOF\u003c\/li\u003e\n\u003cli\u003eType: Oval B-Vent adjustable roof flashing\u003c\/li\u003e\n\u003cli\u003eMaterial: Galvanized steel for long-lasting durability\u003c\/li\u003e\n\u003cli\u003eApplication: Provides a weather-resistant seal for oval B-Vent pipe roof penetrations\u003c\/li\u003e\n\u003cli\u003eDesign: Adjustable to accommodate different roof pitches\u003c\/li\u003e\n\u003cli\u003eFunction: Ensures proper venting performance while preventing water leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811175\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":43580135080181,"sku":"4MOF","price":18.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MOF_1_wm.jpg?v=1759349084"},{"product_id":"4mor-4-type-b-gas-vent-oval-to-round-adapter","title":"4MOR - Type B Gas Vent Oval to Round Adapter - 4\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MOR - Type B Gas Vent Oval to Round Adapter, 4\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab round B-Vent has been evaluated and listed by Underwriters Laboratories, Inc., to mate with other specifically identified and UL listed round gas vent. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnects 4\" oval Metal-Fab Type B Chimney Pipe to 4\" round Metal-Fab Type B Chimney Pipe\u003c\/li\u003e\n\u003cli\u003e4\" Oval pipe measures 7-1\/4\" x 2-1\/2\"\u003c\/li\u003e\n\u003cli\u003e.018\" galvanized steel outer wall and .012\" aluminum alloy inner wall\u003c\/li\u003e\n\u003cli\u003e1\/4\" insulating air space\u003c\/li\u003e\n\u003cli\u003eDoublewall design allows a 1\" clearance to combustibles\u003c\/li\u003e\n\u003cli\u003eAttaches to other components without tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811160\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":43580151070965,"sku":"4MOR","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/318e2225-448e-45a6-a65f-86fbf6646894.jpg?v=1755627628"},{"product_id":"metal-fab-4mo3-type-b-gas-vent-oval-pipe-4-x-36-inch","title":"4MO3 - Type-B Gas Vent Oval Pipe - 4\" X 36\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO4 - Type-B Gas Vent Oval Pipe - 4\" X 36\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811105\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193702543605,"sku":"4MO3","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MO3_1_wm.jpg?v=1759385132"},{"product_id":"metal-fab-4mo24-type-b-gas-vent-oval-pipe-4-x-24","title":"4MO24 - Type-B Gas Vent Oval Pipe - 4\" X 24\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO24 - Type-B Gas Vent Oval Pipe - 4\" X 24\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811110\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193718337781,"sku":"4MO24","price":43.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MO24_1_wm.jpg?v=1759522237"},{"product_id":"metal-fab-4mo18-type-b-gas-vent-oval-pipe-4-x-18-inch","title":"4MO18 - Type-B Gas Vent Oval Pipe - 4\" X 18\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO18 - Type-B Gas Vent Oval Pipe - 4\" X 18\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90. The inner wall is constructed of aluminum alloy, .012\" thick. The vent includes an integral, annular insulating air space, 1\/4\" thick.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811115\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193730134261,"sku":"4MO18","price":35.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MO18_1_wm.jpg?v=1772067864"},{"product_id":"metal-fab-4mo12-type-b-gas-vent-oval-pipe-4-x-12-inch","title":"4MO12 - Type-B Gas Vent Oval Pipe - 4\" X 12\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO12 - Type-B Gas Vent Oval Pipe - 4\" X 12\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811120\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193743208693,"sku":"4MO12","price":31.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_type-b_oval_497e2c42-9885-4f49-8dd9-e171d143a8fb.jpg?v=1755627046"},{"product_id":"metal-fab-4mo6-type-b-gas-vent-oval-pipe-4-x-6-inch","title":"4MO6 - Type-B Gas Vent Oval Pipe - 4\" X 6\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO6 - Type-B Gas Vent Oval Pipe - 4\" X 6\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811125\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193753530613,"sku":"4MO6","price":29.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MO6_1_wm.jpg?v=1759520595"},{"product_id":"metal-fab-4mo12a-type-b-gas-vent-oval-adjustable-length-pipe-4-x-12-inch","title":"4MO12A - Type-B Gas Vent Oval Adjustable Length Pipe - 4\" X 12\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO12A - Type-B Gas Vent Oval Adjustable Length Pipe - 4\" X 12\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811130\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193775059189,"sku":"4MO12A","price":35.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MO12A_1_wm.jpg?v=1759354041"},{"product_id":"metal-fab-4mo45s-type-b-gas-vent-oval-45-degree-fixed-angle-4-inch","title":"4MO45S - Type-B Gas Vent Oval 45 Degree Fixed Angle - 4\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO45S - Type-B Gas Vent Oval 45 Degree Fixed Angle - 4\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811135\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193789575413,"sku":"4MO45S","price":61.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_type-b_oval-45-angle.jpg?v=1755627043"},{"product_id":"metal-fab-4mo45f-type-b-gas-vent-oval-45-degree-flat-fixed-angle-4-inch","title":"4MO45F - Type-B Gas Vent Oval 45 Degree Flat Fixed Angle - 4\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MO45F - Type-B Gas Vent Oval 45 Degree Flat Fixed Angle - 4\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811140\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193811038453,"sku":"4MO45F","price":61.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_type-b_oval-45-4MO45F.jpg?v=1755627042"},{"product_id":"metal-fab-4mro-type-b-gas-vent-round-to-oval-adapter-4-inch","title":"4MRO - Type-B Gas Vent Round to Oval Adapter - 4\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MRO - Type-B Gas Vent Round to Oval Adapter - 4\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811165\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193830666485,"sku":"4MRO","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/53259662-2f73-417b-a282-3dd807e7e17a.jpg?v=1755627041"},{"product_id":"metal-fab-4moc-type-b-gas-vent-oval-vent-cap-4-inch","title":"4MOC - Type-B Gas Vent Oval Vent Cap - 4\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MOC - Type-B Gas Vent Oval Vent Cap - 4\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811170\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193858224373,"sku":"4MOC","price":44.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MOC_1_wm.jpg?v=1759347626"},{"product_id":"metal-fab-4mosc-type-b-gas-vent-oval-storm-collar-4-inch","title":"4MOSC - Type-B Gas Vent Oval Storm Collar - 4\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MOSC - Type-B Gas Vent Oval Storm Collar - 4\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811180\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193887158517,"sku":"4MOSC","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MOSC_1_wm.jpg?v=1760648154"},{"product_id":"metal-fab-4mofs-type-b-gas-vent-oval-firestop-spacer-4-inch","title":"4MOFS - Type-B Gas Vent Oval Firestop Spacer - 4\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 4MOFS - Type-B Gas Vent Oval Firestop Spacer - 4\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003eMetal-Fab 4MOFS - Type B Gas Vent Oval Firestop Spacer - 4\"\u003c\/p\u003e\n\u003cp\u003eThe Metal-Fab 4MOFS is a 4-inch oval firestop spacer designed for use with Type B gas vent systems. It provides the required firestop and clearance to combustibles when the vent passes through a wall, floor, or ceiling. Built to fit standard 2x4 stud walls, this spacer centers and secures the oval vent pipe while maintaining proper clearances. It’s constructed from durable galvanized steel and aluminum materials, ensuring long-lasting performance and compliance with UL 441 standards for gas venting systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Metal-Fab\u003c\/li\u003e\n\u003cli\u003ePart Number: 4MOFS\u003c\/li\u003e\n\u003cli\u003eType: Type B Gas Vent Oval Firestop Spacer\u003c\/li\u003e\n\u003cli\u003eMaterial: Galvanized steel outer wall, aluminum inner wall\u003c\/li\u003e\n\u003cli\u003eVent Size: 4 inch (oval)\u003c\/li\u003e\n\u003cli\u003eApplication: Provides firestop and clearance through walls, floors, or ceilings\u003c\/li\u003e\n\u003cli\u003eDesign: Fits standard 2x4 stud wall framing (16\" on center)\u003c\/li\u003e\n\u003cli\u003eClearance to Combustibles: 1 inch minimum\u003c\/li\u003e\n\u003cli\u003eListing: UL 441 certified for Type B gas vent systems\u003c\/li\u003e\n\u003cli\u003eAdditional Features: Centers oval vent and maintains system integrity for safe venting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811195\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193926971637,"sku":"4MOFS","price":18.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_4MOFS_1_wm.jpg?v=1761069448"},{"product_id":"metal-fab-6moc-type-b-gas-vent-oval-vent-cap-6-inch","title":"6MOC - Type-B Gas Vent Oval Vent Cap - 6\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 6MOC - Type-B Gas Vent Oval Vent Cap - 6\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811280\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44193946271989,"sku":"6MOC","price":54.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/51861759-bf2b-42dd-89a3-429d1fb44f2d.jpg?v=1755627038"},{"product_id":"5moc-type-b-gas-vent-oval-vent-cap-5","title":"5MOC  - Type-B Gas Vent Oval Vent Cap - 5\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 5MOC - Type-B Gas Vent Oval Vent Cap - 5\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab is the only B-Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B-Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outer wall is constructed of galvanized steel, .018\" thick G-90 for sizes 3\" to 14\" diameter, and .024\" thick G-90 for sizes 16\" to 30\" diameter. The inner wall is constructed of aluminum alloy, .012\" thick for sizes 3\" to 8\" diameter and .018\" thick for sizes 10\" to 30\" diameter. The vent includes an integral, annular insulating air space, ¼\" thick for sizes3\" to 6\" diameter and 1\/2\" thick for sizes 7\" to 30\" diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType B Gas Vent\u003c\/li\u003e\n\u003cli\u003eFor use with approved gas furnaces, heaters, fireplaces and boilers\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds all recognizes gas venting codes\u003c\/li\u003e\n\u003cli\u003eUL listed to adapt to identified competing B-Vent brands.\u003c\/li\u003e\n\u003cli\u003e1\" Minimum clearance to combustibles for 3\" through 24\" diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurelock B-Vent Locking System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe design of the SureLock B-Vent Locking System is unique. The male end of the pipe features a square dimple, positioned in the exact location to match the tab that is located on the female end of the pipe. When the pipe is joined and twisted until it stops, the SureLock tab can be pushed into the square dimple, therefore creating a positive twist lock that cannot be twisted apart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\" mce-data-marked=\"1\"\u003eHSS1811360\u003c\/span\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":44463241953525,"sku":"5MOC","price":39.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_type-b_MOC-cap_89659a0e-2685-4f68-923a-92646d0249a4.jpg?v=1755626451"},{"product_id":"6mor-type-b-gas-vent-oval-to-round-adapter-6","title":"6MOR - Type B Gas Vent Oval to Round Adapter - 6\"","description":"\u003cp\u003e\u003cstrong\u003eMetal-Fab 6MOR - Type B Gas Vent Oval to Round Adapter - 6\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMetal-Fab round B-Vent has been evaluated and listed by Underwriters Laboratories, Inc., to mate with other specifically identified and UL listed round gas vent. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnects 6\" oval Metal-Fab Type B Chimney Pipe to 6\" round Metal-Fab Type B Chimney Pipe\u003c\/li\u003e\n\u003cli\u003e6\" Oval pipe measures 7-1\/4\" x 2-1\/2\"\u003c\/li\u003e\n\u003cli\u003e.018\" galvanized steel outer wall and .012\" aluminum alloy inner wall\u003c\/li\u003e\n\u003cli\u003e1\/4\" insulating air space\u003c\/li\u003e\n\u003cli\u003eDoublewall design allows a 1\" clearance to combustibles\u003c\/li\u003e\n\u003cli\u003eAttaches to other components without tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eHSS1811275\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Metal-Fab","offers":[{"title":"Default Title","offer_id":46221646823669,"sku":"6MOR","price":87.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/metalfab_6MOR_1_wm_d6f76151-74bd-4265-a721-7b90f5b80a98.jpg?v=1770231811"}],"url":"https:\/\/www.supplystop.com\/collections\/oval\/metal-fab.oembed","provider":"SupplyStop.com","version":"1.0","type":"link"}