Rheem RRT Therm-X-Guard Expansion Tank - 5 Gal

When water is heated, it expands. Thermal Expansion Tanks absorb the heated water, preventing unwanted leaks or tripping of relief devices. Advantages of installing a Thermal Expansion Tank include the following: Protects water heater and fixtures Eliminates water and heat waste – saving money and energy Reduces potential safety hazards Total Volume (gallons): 4.4 Operating Pressure (psig): 150 System Connection Fitting Material: Brass System Connection Size: 3/4 NPTM