{"title":"2 to 5 Gallons","description":null,"products":[{"product_id":"12-a101-elbi-backstop-expansion-tank","title":"12-A101 - Backstop Thermal Expansion Tank - 2.1 Gallon","description":"\u003cp\u003e\u003cstrong\u003eElbi 12-A101 - Backstop Thermal Expansion Tank - 2.1 Gallon\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eThe Elbi Backstop A Series thermal expansion tank protects water heaters and closed-loop plumbing systems from excess pressure caused by thermal expansion. Designed for use in residential and light commercial potable water systems, it absorbs expanded water volume to prevent stress on pipes, valves, and appliances. With durable construction and a compact, pre-charged design, it ensures long-lasting performance and easy installation.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eIndustry-leading 6-year warranty on manufacturing defects\u003c\/li\u003e\r\n\u003cli\u003ePre-pressurized with adjustable air charge (factory-set to 40 PSI)\u003c\/li\u003e\r\n\u003cli\u003e100% butyl rubber diaphragm prevents waterlogging\u003c\/li\u003e\r\n\u003cli\u003eNSF-61 and NSF-372 certified for potable water systems\u003c\/li\u003e\r\n\u003cli\u003eHigh-grade steel with double-rolled seals for durability\u003c\/li\u003e\r\n\u003cli\u003eEpoxy-coated, appliance-grade finish for corrosion protection\u003c\/li\u003e\r\n\u003cli\u003eCompact vertical design with 3\/4\" NPT connection\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eResidential and light commercial water heaters\u003c\/li\u003e\r\n\u003cli\u003ePlumbing systems with backflow preventers or check valves\u003c\/li\u003e\r\n\u003cli\u003eAny closed potable water system requiring thermal expansion control\u003c\/li\u003e\r\n\u003cli\u003eSystems where protection, efficiency, and warranty support matter\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003ePVZ1T10110\u003c\/span\u003e\u003c\/p\u003e","brand":"Elbi","offers":[{"title":"Default Title","offer_id":43787283857653,"sku":"12-A101","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/e831555b-3fdc-42bc-88c7-166ea40764b2.png?v=1755627233"},{"product_id":"xt-15-thermal-expansion-tank","title":"XT-15 - Diaphragm Hydronic Expansion Tank - 2.1 Gallon","description":"\u003cp\u003e\u003cstrong\u003eElbi XT-15 - Diaphragm Hydronic Expansion Tank - 2.1 Gallon\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eDesigned and manufactured by Elbi since 1975, the XTXTV Series expansion tanks are solid and have proven reliable in millions of installations worldwide. The two shell welded construction allows the tank to withstand high pressure ratings and therefore adds safety to your system. The BUTYL diaphragm separates the air from the water and prevents waterlogging while saving space and energy. Product is intended for use in hot water, solar and cooling systems and is compatible with glycol.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eWelded Strong Construction - Steel shells are designed to withstands high pressure loads and add safety to your installation. Tanks are sturdy and built to last while at the same time they are lightweight, easy to handle and simple to install.\u003c\/li\u003e\r\n\u003cli\u003eHeavy Duty Butyl Diaphragm - Withstands temperatures as high as 240 degrees F. Of solid construction, manufactured in house through an injection molding process. Made of proprietary food quality compound which will not release taste or odors in the water. Compatible with glycol, solar and cooling systems.\u003c\/li\u003e\r\n\u003cli\u003eEpoxy Gray Paint Finish - Provides an attractive, durable appliance like finish obtained through an epoxy paint.\u003c\/li\u003e\r\n\u003cli\u003e12 PSI Factory Precharge on All Models - Suits most common installations. The precharge can be manually adjusted on site. \u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cstrong\u003eSpecifcations\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eModel Number: XT-15\u003c\/li\u003e\r\n\u003cli\u003eCapacity: 2.1 gallons\u003c\/li\u003e\r\n\u003cli\u003eAcceptance Volume:1.4 gallons\u003c\/li\u003e\r\n\u003cli\u003eConnection: 1\/2\" Male NPT\u003c\/li\u003e\r\n\u003cli\u003eMax Working Pressure: 150 PSIG\u003c\/li\u003e\r\n\u003cli\u003eFactory Precharge: 12 PSIG\u003c\/li\u003e\r\n\u003cli\u003eMax Working Temperature: 210 degrees F\u003c\/li\u003e\r\n\u003cli\u003eDiameter: 8\"\u003c\/li\u003e\r\n\u003cli\u003eHeight: 11-3\/4\"\u003c\/li\u003e\r\n\u003cli\u003eWeight: 6.64 lbs\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003eRELB123005\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Elbi","offers":[{"title":"Default Title","offer_id":45613024444661,"sku":"XT-15","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/c46e416a-8279-4b94-b116-d1ffdd5df589.webp?v=1755625945"},{"product_id":"12-twh2-tankless-water-heater-expansion-tank","title":"12-TWH2 - Tankless Water Heater Expansion Tank","description":"\u003cp\u003e\u003cstrong\u003eElbi 12-TWH2 - Tankless Water Heater Expansion Tank\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eThe new TWH2 all stainless steel tankless water heater expansion vessel is designed for use with tankless water heaters or point of use (P.O.U.) water heaters having 2 gallons or less volume.\u003c\/p\u003e\r\n\u003cp\u003eThis new device absorbs thermal expansion and pressure surges in tankless and (P.O.U.) water heaters to protect the heat exchanger. They can also be used as a shock suppressor (water hammer arrestor) for appliances with a fixture unit capacity of 11 (“A” size). This unit is durable and corrosion resistant.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eThe unit is tested and approved by lAPMO, and tested at the IAPMO lab to the NSF 61 standard for potable water. The system connection is 1\/2\" MPT Stainless steel and is supplied with or without an air charge valve.\u003c\/li\u003e\r\n\u003cli\u003eAll Stainless Steel\u003c\/li\u003e\r\n\u003cli\u003eEasy to Install\u003c\/li\u003e\r\n\u003cli\u003eTested \u0026amp; Approved by IAPMO\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003chr\u003e\r\n\u003cp style=\"text-align: right;\"\u003e\u003csup\u003e\u003cspan style=\"color: #999999;\"\u003e PVZ1T10130\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Elbi","offers":[{"title":"Default Title","offer_id":46078280433909,"sku":"12-TWH2","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/elbi_12-twh2_3_wm.jpg?v=1755625868"},{"product_id":"12-a102-elbi-backstop-expansion-tank","title":"12-A102 - Backstop Thermal Expansion Tank - 4.5 Gallon","description":"\u003cp\u003e\u003cstrong\u003eElbi 12-A102 - Backstop Thermal Expansion Tank - 4.5 Gallon\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Elbi Backstop A Series thermal expansion tank protects water heaters and closed-loop plumbing systems from excess pressure caused by thermal expansion. Designed for use in residential and light commercial potable water systems, it absorbs expanded water volume to prevent stress on pipes, valves, and appliances. With durable construction and a compact, pre-charged design, it ensures long-lasting performance and easy installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustry-leading 6-year warranty on manufacturing defects\u003c\/li\u003e\n\u003cli\u003ePre-pressurized with adjustable air charge (factory-set to 40 PSI)\u003c\/li\u003e\n\u003cli\u003e100% butyl rubber diaphragm prevents waterlogging\u003c\/li\u003e\n\u003cli\u003eNSF-61 and NSF-372 certified for potable water systems\u003c\/li\u003e\n\u003cli\u003eHigh-grade steel with double-rolled seals for durability\u003c\/li\u003e\n\u003cli\u003eEpoxy-coated, appliance-grade finish for corrosion protection\u003c\/li\u003e\n\u003cli\u003eCompact vertical design with 3\/4\" NPT connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResidential and light commercial water heaters\u003c\/li\u003e\n\u003cli\u003ePlumbing systems with backflow preventers or check valves\u003c\/li\u003e\n\u003cli\u003eAny closed potable water system requiring thermal expansion control\u003c\/li\u003e\n\u003cli\u003eSystems where protection, efficiency, and warranty support matter\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;\"\u003ePVZ1T10120\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Elbi","offers":[{"title":"Default Title","offer_id":46615433838837,"sku":"12-A102","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/e5fd57a0-d46c-450f-8f78-1f49c6e52ddd.jpg?v=1755625624"}],"url":"https:\/\/www.supplystop.com\/collections\/2-5-gallons\/expansion-tanks.oembed","provider":"SupplyStop.com","version":"1.0","type":"link"}