{"product_id":"b0fk5y88r5","title":"Water Worker G-5W and G-12W Thermal Expansion Tanks – Pre-Charged, Steel, Vertical Water Heater Expansion Tank – NSF Certified, Potable Water Safe – 2 or 4.4 Gallon Capacity (White, G-12W 2 Pack)","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eProtects Plumbing and Extends Water Heater Life – The Water Worker G-5W (2-gallon) and G-12W (4.4-gallon) thermal expansion tanks are designed to safely absorb excess water pressure caused by thermal expansion in closed-loop water heater systems. Prevents pressure buildup that can damage pipes, fixtures, and your water heater.\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty Steel Construction with Durable Inner Liner – Built with a robust steel shell and a polypropylene liner that separates the water from the pre-charged air chamber, these expansion tanks resist corrosion, cracking, and waterlogging—ensuring long-lasting performance in residential and light commercial water systems.\u003c\/li\u003e\n\u003cli\u003ePre-Charged and Ready for Easy Installation – Each Water Worker expansion tank is factory pre-charged for quicker, easier installation. The G-5W and G-12W models feature a vertical design and a 3\/4\" male NPT connection, making them compatible with most standard water heater setups. Installation is simple with basic plumbing tools.\u003c\/li\u003e\n\u003cli\u003eNSF Certified for Potable Water Systems – These tanks are NSF\/ANSI 61 certified for safe use in drinking water systems, making them ideal for residential water heaters. The butyl diaphragm ensures a tight seal and helps maintain system pressure without contaminating the water supply.\u003c\/li\u003e\n\u003cli\u003eReliable Performance – Water Worker tanks are proudly made and rigorously tested for quality and performance. Ideal for both traditional tank-style and tankless water heater systems, these thermal expansion tanks offer peace of mind with proven reliability in high-pressure environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eOverview\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eBrand : Water Worker\u003c\/li\u003e\n\u003cli\u003eProduct Dimensions : 7\"W x 10\"H\u003c\/li\u003e\n\u003cli\u003eColor : White\u003c\/li\u003e\n\u003cli\u003eManufacturer : Water Worker\u003c\/li\u003e\n\u003cli\u003eUPC : 014045517331\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Water+Worker","offers":[{"title":"Default Title","offer_id":48142948172024,"sku":"B0FK5Y88R5","price":230.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/4466\/6616\/files\/612uPBrlrmL._AC_SX679.jpg?v=1774609195","url":"https:\/\/onebuildsupply.com\/products\/b0fk5y88r5","provider":" PipePulse","version":"1.0","type":"link"}