American Water Heater 5 Gal. 1 Year Water Expansion Tank

Many of today's water systems require backflow prevention. This seals off the system and requires the use of an expansion tank, or the relief valve can discharge on every heating cycle. TW Series tanks eliminate wasting water and provide a smooth operating system and assure long trouble-free service.|Stainless steel acceptance fitting|Polypropylene liner eliminates internal corrosion|2-piece design|150 psi rating|Butyl rubber diaphragm|Deep drawn steel|1-year limited warranty|No wasted water|200 degree F max temperature|External baked epoxy-polyester coating