{"product_id":"neo-pure-thermal-expansion-tank-2-1-gal-3-4-mnpt","title":"Neo-Pure Thermal Expansion Tank 2.1 gal  3\/4 MNPT","description":"The Neo-Pure Thermal Expansion tanks are designed for residential water heater and hot water storage tank systems to manage the increased water volume caused by thermal expansion. By maintaining consistent pressure throughout the water supply system, these tanks help protect against over-pressure conditions and extend the life of the system. A durable internal membrane separates air and water, ensuring reliable performance over time. Thermal Expansion Tanks are the perfect solution for protecting your appliances, water heater, and fixtures.\u003cbr\u003e  \u003cbr\u003e   \u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e  \u003cul\u003e\u003cli\u003eProtects the water heater and plumbing fixtures from premature failure\u003c\/li\u003e\u003c\/ul\u003e \u003cul\u003e\u003cli\u003ePrevents pressure build up within the system\u003c\/li\u003e\u003c\/ul\u003e   \u003cdiv style=\"font-family: Jost, sans-serif; max-width: 680px; margin-top: 14px; margin-bottom: 14px\"\u003e\n  \u003cdetails style=\"background: #ffffff; border-radius: 25px; overflow: hidden\" ontoggle=\"\n      this.querySelector('.disclosure__toggle path').setAttribute(\n        'd',\n        this.open ? 'M20 16 12.5 8.5 5 16' : 'M20 8.5 12.5 16 5 8.5',\n      )\n    \"\u003e\n    \u003csummary style=\"\n        background: #9fd8cf;\n        padding: 10px 16px;\n        font-size: 17px;\n        font-weight: bold;\n        letter-spacing: 0.03em;\n        cursor: pointer;\n        list-style: none;\n        display: flex;\n        justify-content: space-between;\n        align-items: center;\n      \" onmouseover=\"this.style.background = '#1FC7AE'\" onmouseout=\"this.style.background = '#9fd8cf'\"\u003e\n      Maximum Water Temperature\n      \u003cspan class=\"disclosure__toggle\" style=\"display: inline-block\"\u003e\n        \u003csvg width=\"20\" height=\"20\" viewbox=\"0 -5 24 24\" aria-hidden=\"true\" focusable=\"false\" role=\"presentation\"\u003e\n          \u003cpath d=\"M20 8.5 12.5 16 5 8.5\" stroke=\"currentColor\" stroke-width=\"1.5\" fill=\"none\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\n      \u003c\/span\u003e\n    \u003c\/summary\u003e\n    \u003cdiv style=\"max-height: 350px; overflow: auto\"\u003e\n      \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; background-color: #ffffff; color: #000000; opacity: 1\"\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n          \u003cth style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #deedef; color: #000000; opacity: 1\"\u003eWater Heater Size\/Volume\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #deedef; color: #000000; opacity: 1\"\u003e130º F\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #deedef; color: #000000; opacity: 1\"\u003e140º F\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #deedef; color: #000000; opacity: 1\"\u003e160º F\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #deedef; color: #000000; opacity: 1\"\u003e180º F\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e30 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e40 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e50 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e60 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e80 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-021\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e100 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-090\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e120 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-090\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e150 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-090\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-090\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003e175 GALLONS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-048\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-090\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-090\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #ccc; padding: 6px 8px; text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; opacity: 1\"\u003eTET-090\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-family:Arial, sans-serif; font-size:14px; margin:5px 0; text-align:left;\"\u003e\n    Sizing based on water heater recovery from 40F, water supply pressure of 60 PSIG, \n    and relief valve set at 150 PSIG. Adjust tank precharge to equal incoming water pressure.\n  \u003c\/p\u003e\n\n\u003cdiv class=\"neoPure Reverse Osmosis Tanks\" style=\"text-align:left; margin-top:0; padding-top:0;\"\u003e \n\n  \u003ctable style=\"width:100%; max-width:1000px; border-collapse:collapse; border-spacing:0; margin-top:0; font-family:Arial, sans-serif; font-size:14px; color:#333; text-align:left;\"\u003e \n\n    \u003ctbody\u003e \n\n      \u003c!-- Image 1 --\u003e \n\n      \u003ctr\u003e \n\n        \u003ctd colspan=\"2\" style=\"padding:0 0 15px 0;\"\u003e \n\n          \u003cimg src=\"https:\/\/assets.freshwatersystems.com\/image\/upload\/s--41E2eEhx--\/pa8skeewclileudr0www\" alt=\"Diagram showing a water heater, boiler, and a thermal expansion tank (TET-021) installed to prevent unsafe pressures and dripping relief valves\" style=\"width:100%; max-width:1000px; height:auto; display:block;\"\u003e \n\n        \u003c\/td\u003e \n\n      \u003c\/tr\u003e \n\n  \n\n      \u003c!-- Image 2 --\u003e \n\n      \u003ctr\u003e \n\n        \u003ctd colspan=\"2\" style=\"padding:15px 0;\"\u003e \n\n          \u003cimg src=\"https:\/\/assets.freshwatersystems.com\/image\/upload\/s--IjDgdWxq--\/ztadoo5k9jek9mfen2yg\" alt=\"Close ups of the bottom and top of the thermal expansion tank next to a water heater. The tank prevents pressure build up\" style=\"width:100%; max-width:1000px; height:auto; display:block;\"\u003e \n\n        \u003c\/td\u003e \n\n      \u003c\/tr\u003e \n\n  \n\n      \u003c!-- Image 3 --\u003e \n\n      \u003ctr\u003e \n\n        \u003ctd colspan=\"2\" style=\"padding:15px 0;\"\u003e \n\n          \u003cimg src=\"https:\/\/assets.freshwatersystems.com\/image\/upload\/s--1YGMSLQV--\/fm16rguioufvtidkktwt\" alt=\"Diagram showing how water enters a water heater and where the thermal expansion tank is in the process\" style=\"width:100%; max-width:1000px; height:auto; display:block;\"\u003e \n\n        \u003c\/td\u003e \n\n      \u003c\/tr\u003e \n\n    \u003c\/tbody\u003e \n\n  \u003c\/table\u003e \n\n\u003c\/div\u003e","brand":"neoPure","offers":[{"title":"Default Title","offer_id":50681432867000,"sku":"TET-021","price":26.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2723\/8896\/files\/rxdtcgt96ok8bmiatc90_32f3eae3-e244-4c76-b802-6dd1678b203b.jpg?v=1792570810","url":"https:\/\/freshwitersystems.com\/products\/neo-pure-thermal-expansion-tank-2-1-gal-3-4-mnpt","provider":"Fresh Water Systems","version":"1.0","type":"link"}