{"title":"CH\/CH-ASME","description":null,"products":[{"product_id":"o-ring-epdm-o17-5x2-7-nsf-e751","title":"20006949A - O-Ring - EDPM, 17.5 x 2.7 mm","description":"\u003cp\u003e\u003cstrong\u003eNavien 20006949A - EPDM O-Ring for CC, CR, NP, NCB, NPE, NR and CH\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eO-Ring EPDM O17.5X2.7 NSF E751\u003c\/li\u003e\n\u003cli\u003eGenuine Navien OEM replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000070\u003c\/span\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067022921925,"sku":"20006949A","price":1.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/products\/20006949a.jpg?v=1753475030"},{"product_id":"o-ring-epdm-p20-nsf-e7518-ewk2","title":"20017212A - O-Ring - EPDM, 4.25\" x 7\"","description":"\u003cp\u003eO-Ring EPDM P20 NSF E7518 EWK2\u003c\/p\u003e\r\n\u003cp\u003eFor All CC \/ CH \/ CR \/ NCB \/ NP \/ NPE \/ NR\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003chr\u003e\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000100\u003c\/span\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067027345605,"sku":"20017212A","price":2.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/products\/download..png?v=1753475029"},{"product_id":"back-up-ring-20018744a-20007831a-bh2507308a","title":"20018744B - Back-Up Ring - Polyamide 6.6, 18.5 x 21.6 mm","description":"\u003cp\u003e\u003c!-- x-tinymce\/html --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNavien 20018744B - Back-Up Ring - Polyamide 6.6, 18.5 x 21.6 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Navien 20018744B Back-Up Ring is a genuine OEM part designed to provide structural support for seals and O-rings in high-pressure areas of Navien water heaters and boilers. Made of durable Polyamide 6.6, it prevents deformation and leakage by reinforcing joint stability. This part is commonly used in systems requiring robust seal retention, especially where thermal expansion and mechanical stress are present.\u003c\/p\u003e\n\u003cp\u003eCompatible with a wide range of Navien units, including:\u003c\/p\u003e\n\u003cul data-start=\"638\" data-end=\"840\"\u003e\n\u003cli data-start=\"638\" data-end=\"679\"\u003eNPE Series tankless water heaters\u003c\/li\u003e\n\u003cli data-start=\"680\" data-end=\"725\"\u003eCR\/CC Series condensing water heaters\u003c\/li\u003e\n\u003cli data-start=\"726\" data-end=\"785\"\u003eNCB, NCB-ASME, CH, and CH-ASME Series combi-boilers\u003c\/li\u003e\n\u003cli data-start=\"786\" data-end=\"840\"\u003eNR\/NP Series condensing tankless water heaters\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;\"\u003ePNAV000095\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067027837125,"sku":"20018744B","price":0.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/91104611-8bfd-4237-894b-0dc77894b025.png?v=1753475026"},{"product_id":"air-pressure-flow-sensor-aps","title":"30000663A - Air Pressure Flow Sensor","description":"\u003cp\u003e\u003cstrong\u003eNavien 30000663A - Air Pressure Flow Sensor (APS)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"155\" data-end=\"539\"\u003eThe Navien 30000663A is a genuine OEM air pressure sensor (APS), also known by part number NASS9EX00009. It is designed for use in Navien heating systems, including tankless water heaters and condensing boilers. This sensor monitors air pressure to help ensure proper and efficient operation of the system. It features an analog output and is typically flange-mounted inside the unit.\u003c\/p\u003e\n\u003cp data-start=\"541\" data-end=\"864\"\u003eCompatible with CR and CC Series Tankless Water Heaters, CH and CH-ASME Series Condensing Gas Combination Boilers, and NR and NP Series Condensing Tankless Gas Water Heaters, this sensor supports a pressure range of 0 to 100 psi. It is an essential replacement part for maintaining performance and safety in Navien systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-start=\"866\" data-end=\"879\"\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOEM Navien replacement part\u003c\/li\u003e\n\u003cli\u003eMeasures air pressure up to 100 psi\u003c\/li\u003e\n\u003cli\u003eAnalog output signal\u003c\/li\u003e\n\u003cli\u003eFlange mount design\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1020\" data-end=\"1183\"\u003e\u003cstrong data-start=\"1020\" data-end=\"1037\"\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1020\" data-end=\"1183\"\u003eCR\/CC Series Tankless Water Heaters\u003c\/li\u003e\n\u003cli data-start=\"1020\" data-end=\"1183\"\u003eCH\/CH-ASME Series Condensing Gas Combination Boilers\u003c\/li\u003e\n\u003cli data-start=\"1020\" data-end=\"1183\"\u003eNR\/NP Series Condensing Tankless Gas Water Heaters\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;\"\u003ePNAV000140\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067045761221,"sku":"30000663A","price":37.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/products\/navien_30000663a.jpg?v=1753475025"},{"product_id":"flame-rod-assembly","title":"30004680A - Flame Rod Assembly - NG","description":"\u003cp\u003eFlame Rod Assembly\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000065\u003c\/span\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067046056133,"sku":"30004680A","price":12.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/products\/navien_30004680a.jpg?v=1753475023"},{"product_id":"flame-rod-assembly-ch-cc-cr-series-propane-only","title":"30004684A - Flame Rod Assembly - LP","description":"\u003cp\u003e\u003cstrong\u003eNavien 30004684A - LP Flame Rod Assembly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFlame Rod Assembly- CH \/ CC \/ CR Series (Propane Only)\u003c\/li\u003e\n\u003cli\u003eGenuine Navien OEM replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000110\u003c\/span\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067046121669,"sku":"30004684A","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/0e245882-69bc-47a9-b370-7f5a2965ae01.jpg?v=1753475021"},{"product_id":"navien-dhw-flow-sensor","title":"30013685A - DHW Flow Sensor","description":"\u003cp\u003e\u003cstrong\u003eNavien 30013685A - DHW Flow Sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"162\" data-end=\"507\"\u003eThe Navien 30013685A is a domestic hot water (DHW) flow sensor designed for use in Navien tankless water heaters, especially those in the CH series. This sensor plays a critical role in energy-efficient operation by detecting water flow and signaling the control board to activate or deactivate the heating element accordingly.\u003c\/p\u003e\n\u003cp data-start=\"509\" data-end=\"826\"\u003eBy ensuring that the heater only operates when water is actually flowing, the sensor helps reduce energy consumption, extend system lifespan, and maintain responsive hot water delivery. Built from durable materials and designed for easy replacement, it is a reliable component for maintaining peak system performance.\u003c\/p\u003e\n\u003cp data-start=\"828\" data-end=\"903\"\u003e\u003cstrong data-start=\"828\" data-end=\"845\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"828\" data-end=\"903\"\u003eCompatible with Navien CH series tankless water heaters\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;\"\u003ePNAV000075\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067055165637,"sku":"30013685A","price":39.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/navien_30013685A_1_wm.jpg?v=1769637704"},{"product_id":"water-pressure-sensor-lwco-for-ch-ncb-series","title":"30014699A - Water Pressure Sensor LWCO - Push-Pull Output for CH and NCB Series","description":"\u003cp\u003e\u003cstrong\u003eNavien 30014699A - Water Pressure Sensor LWCO - Push-Pull Output for CH and NCB Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"215\" data-end=\"599\"\u003eThe Navien 30014699A is a water pressure sensor designed for use with Navien CH and NCB series condensing gas combination boilers. Also known as a low water cut-off (LWCO), this OEM part monitors system pressure and transmits readings to the unit’s control system. It plays a vital role in maintaining safe, efficient operation by helping prevent low-pressure damage or system faults.\u003c\/p\u003e\n\u003cp data-start=\"601\" data-end=\"828\"\u003eBuilt with durable materials and a push-pull output design, this sensor offers accurate pressure detection with ±3% measurement tolerance. It can be surface or flange mounted for versatile installation and reliable performance.\u003c\/p\u003e\n\u003cp data-start=\"830\" data-end=\"1077\"\u003e\u003cstrong data-start=\"830\" data-end=\"849\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"830\" data-end=\"1077\"\u003eProduct Type: Water pressure sensor (LWCO)\u003c\/li\u003e\n\u003cli data-start=\"830\" data-end=\"1077\"\u003eOutput Type: Push-pull\u003c\/li\u003e\n\u003cli data-start=\"830\" data-end=\"1077\"\u003eMounting: Surface or flange\u003c\/li\u003e\n\u003cli data-start=\"830\" data-end=\"1077\"\u003eDimensions: 3\" L x 1.75\" W x 2.76\" H\u003c\/li\u003e\n\u003cli data-start=\"830\" data-end=\"1077\"\u003eWeight: 0.5 lbs\u003c\/li\u003e\n\u003cli data-start=\"830\" data-end=\"1077\"\u003eMeasurement Accuracy: ±3%\u003c\/li\u003e\n\u003cli data-start=\"830\" data-end=\"1077\"\u003eMaterial: Durable composite construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1079\" data-end=\"1174\"\u003e\u003cstrong data-start=\"1079\" data-end=\"1096\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1079\" data-end=\"1174\"\u003eCompatible with Navien CH and NCB series condensing gas combination boilers\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;\"\u003ePNAV000115\u003c\/span\u003e\u003c\/sup\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":38067055722693,"sku":"30014699A","price":29.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/products\/30014699a.jpg?v=1753474996"},{"product_id":"20006958a-packing-ring-epdm-3-4","title":"20006958A - Packing Ring - EPDM, 3\/4\"","description":"\u003cp\u003e\u003cstrong\u003eNavien 20006958A - Packing Ring - EPDM, 3\/4\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"127\" data-end=\"491\"\u003eThe Navien 20006958A is a 3\/4\" EPDM packing ring designed for secure, leak-resistant sealing in Navien water heaters and boilers. Made from durable EPDM rubber, this genuine OEM part ensures long-lasting performance in high-temperature and high-pressure environments. It is compatible with a range of Navien series including CR\/CC, NR\/NP, CH, NCB, and NCB-E units.\u003c\/p\u003e\n\u003cp data-start=\"493\" data-end=\"758\"\u003eThis black EPDM ring provides a tight seal between fittings, helping to maintain system efficiency and prevent leaks over time. Whether you're performing routine maintenance or a component replacement, the 20006958A ensures proper fit and factory-grade reliability.\u003c\/p\u003e\n\u003cp data-start=\"760\" data-end=\"974\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"760\" data-end=\"974\"\u003e3\/4\" EPDM packing ring\u003c\/li\u003e\n\u003cli data-start=\"760\" data-end=\"974\"\u003eGenuine Navien OEM component\u003c\/li\u003e\n\u003cli data-start=\"760\" data-end=\"974\"\u003eMade from durable, heat-resistant rubber\u003c\/li\u003e\n\u003cli data-start=\"760\" data-end=\"974\"\u003eColor: Black\u003c\/li\u003e\n\u003cli data-start=\"760\" data-end=\"974\"\u003eDesigned for high-temperature, high-pressure use\u003c\/li\u003e\n\u003cli data-start=\"760\" data-end=\"974\"\u003eEnsures a tight, leak-resistant seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"976\" data-end=\"1222\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"976\" data-end=\"1222\"\u003eNavien water heater and boiler maintenance\u003c\/li\u003e\n\u003cli data-start=\"976\" data-end=\"1222\"\u003eCompatible with CR\/CC, NR\/NP, CH, NCB, and NCB-E series\u003c\/li\u003e\n\u003cli data-start=\"976\" data-end=\"1222\"\u003eUse at connection points to maintain system integrity\u003c\/li\u003e\n\u003cli data-start=\"976\" data-end=\"1222\"\u003eIdeal for service technicians and installers working with Navien units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"976\" data-end=\"1222\"\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003cp style=\"text-align: right;\"\u003e\u003cspan style=\"color: #999999;\"\u003ePNAV000130\u003c\/span\u003e\u003c\/p\u003e","brand":"Navien","offers":[{"title":"Default Title","offer_id":46875379990773,"sku":"20006958A","price":1.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/6150\/2518\/files\/8924ea7e-d0b0-4a86-9b9a-b94ec7225ec9.png?v=1753730637"}],"url":"https:\/\/www.supplystop.com\/collections\/series-ch-ch-asme\/series-ncb.oembed","provider":"SupplyStop.com","version":"1.0","type":"link"}