{"product_id":"zilmet-zep12-easy-pro-4-8-gallon-in-line-thermal-expansion-tank-3-4-mnpt","title":"Zilmet ZEP12 Easy-Pro 4.8 Gallon In-Line Thermal Expansion Tank, 3\/4\" MNPT","description":"\u003ch1\u003eZilmet ZEP12 Easy-Pro 4.8 Gallon In-Line Thermal Expansion Tank, 3\/4\" MNPT\u003c\/h1\u003e\n\u003cp\u003eZilmet Thermal Expansion Tanks for water heaters prevent dangerous pressure build up and protect household appliances and fixtures while saving energy and water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll tanks are NSF61 Certified\u003c\/li\u003e\n\u003cli\u003eEach tank is factory leak tested to ensure tank integrity\u003c\/li\u003e\n\u003cli\u003eMIG welding eliminated interior rough spots and sharp edges\u003c\/li\u003e\n\u003cli\u003eExclusive polypropylene liner eliminates internal corrosion\u003c\/li\u003e\n\u003cli\u003eExternal baked epoxy-polyester coating provides a durable appliance like finish\u003c\/li\u003e\n\u003cli\u003eProtected pre charge valve eliminates potential leak path\u003c\/li\u003e\n\u003cli\u003eCarbon steel shell with a stainless steel connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarbon Steel Shell\u003c\/li\u003e\n\u003cli\u003eStainless Steel Connection\u003c\/li\u003e\n\u003cli\u003eButyl fixed membrane\u003c\/li\u003e\n\u003cli\u003eMax operating pressure: 150 psi\u003c\/li\u003e\n\u003cli\u003eOperating temperature: 210°F\u003c\/li\u003e\n\u003cli\u003eFactory precharge: 40 psi\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDiameter:  10.6 inches\u003c\/li\u003e\n\u003cli\u003eHeight:  13.7 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003ca href=\"https:\/\/zilmetusa.com\/wp-content\/uploads\/2025\/08\/Easy-Pro.pdf\"\u003e\u003cspan\u003eEasy-Pro Brochure\u003c\/span\u003e\u003c\/a\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003ca href=\"https:\/\/zilmetusa.com\/wp-content\/uploads\/2025\/11\/Expansion-Tanks-Installation-Manual.pdf\"\u003e\u003cspan\u003eInstallation Instructions\u003c\/span\u003e\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/zilmetusa.com\/wp-content\/uploads\/2025\/10\/In-Line-Thermal-Expansion-Tanks-Data-Submittal.pdf\"\u003e\u003cstrong\u003eSubmittal\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Edmondson Supply","offers":[{"title":"Default Title","offer_id":51693113114840,"sku":"ZEP12","price":57.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0011\/6709\/7956\/files\/Screenshot2026-05-15203926.png?v=1778892073","url":"https:\/\/edmondsonsupply.com\/products\/zilmet-zep12-easy-pro-4-8-gallon-in-line-thermal-expansion-tank-3-4-mnpt","provider":"Edmondson Supply","version":"1.0","type":"link"}