TX-5 3/4" External NPT Potable Expansion Tank (2 Gallon)

The Honeywell Thermal Expansion Absorber is an expansion tank with a butyl diaphragm. The Thermal Expansion Tank controls pressure build-up in the system, eliminates relief valve spillage, protects fixtures and extends water heater life. Product Features Heavy duty butyl rubber diaphragm (FDA approved) isolates water from air Polypropylene liner, 100% non-metallic, non-corrosive water reservoir Prevents water hammer Maintenance free Protects water heater from harmful pressure cycling Allows storage of expanded water with no increase in system pressures Prevents backflow when supply pressure falls below system pressure Product Specifications Volume (gal): 2 gal Maximum Acceptance Volume (gal): 0.9 gal Diameter (in.) : 8" Height (in.): 12.63" Connection Type: Male NPT