2 GALLON POTABLE EXPANSION TANK 1 YEARFor use with residential and commercial water heaters. In line design, with 3 4" NPTM connection: installs in cold water line of water heater. Field adjustable 40 PSI air charge. Drawn steel tank with 2 coat bonded polymer inner lining. Butyl diaphragm, for permanent separation of air and water, with no water logging.
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