{"product_id":"dometic-2-0-gallon","title":"Dometic Expansion Tank 2.0 Gallon - Water Heater Part# 290000086","description":"\u003cp\u003eThe Dometic expansion tank (Part# 290000086) is a critical component in your RV water heating system that prevents pressure buildup and extends the life of your water heater. This 2.0-gallon tank accommodates thermal expansion as water heats, protecting seals and connections from damage. Essential for any RV owner maintaining their Dometic water heater system.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2.0-gallon capacity for proper thermal expansion relief\u003c\/li\u003e\n\u003cli\u003eOEM Dometic part ensures perfect compatibility\u003c\/li\u003e\n\u003cli\u003ePrevents pressure-related damage to water heater components\u003c\/li\u003e\n\u003cli\u003eDirect replacement for original equipment\u003c\/li\u003e\n\u003cli\u003eDurable construction built for RV travel conditions\u003c\/li\u003e\n\u003cli\u003eEasy installation on existing water heater systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable class=\"table table-bordered table-sm\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e290000086\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e2.0 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eDometic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eRV Water Heater Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eExpansion Tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I know if my expansion tank needs replacement?\u003c\/strong\u003e\u003cbr\u003eA: Signs include water leaking from the tank, reduced hot water pressure, or visible corrosion. If your water heater is cycling on and off frequently, the expansion tank may be failing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Will this tank fit my Dometic water heater?\u003c\/strong\u003e\u003cbr\u003eA: This is a genuine OEM Dometic part designed for Dometic water heater systems. Verify your model number matches the compatibility list or contact our support team for confirmation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How often should I replace an expansion tank?\u003c\/strong\u003e\u003cbr\u003eA: With proper maintenance, expansion tanks typically last 5-10 years. Replacement depends on water quality, usage frequency, and system maintenance.\u003c\/p\u003e\u003ch3\u003eWhy Choose Elkhart RV Parts\u003c\/h3\u003e\u003cp\u003eWe specialize in hard-to-find Dometic RV replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part we sell is genuine OEM equipment backed by expert customer support. When you need the exact Dometic component for your water heating system, trust the specialists who know RVs inside and out.\u003c\/p\u003e","brand":"Dometic","offers":[{"title":"Default Title","offer_id":48363247730840,"sku":"290000086","price":368.98,"currency_code":"USD","in_stock":true}],"url":"https:\/\/elkhartrvparts.com\/en-ca\/products\/dometic-2-0-gallon","provider":"Elkhart RV Parts","version":"1.0","type":"link"}