5 Gallon Potable Water Expansion Tank 3/4" MNPT (5 Year Warranty)

• 16 ga cold rolled steel tank
• 3/4" stainless steel MNPT inlet fitting
• 100% butyl diaphragm and polypropylene liner
• Precharged to 40 PSI
• 5 YEAR MANUFACTURERS WARRANTY

Expansion Tanks are designed for the specific purpose of accommodating the natural expansion of water in a household water system. To eliminate the water logging that is trouble-some but normal in a plain steel expansion tank, the air and water within the tank is permanently separated by a butyl diaphragm.

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. Expansion Tanks eliminate wasting water and provide a smooth operating system. With a unique lining on the water side, you are assured long trouble-free service.