Accepts expanded water caused by thermal expansion;Returns water to the system when hot water is used;Prevents the relief valve from going off;Inline thermal expansion tank;Prevents dripping faucets, intermittent toilet fill and pressure relief valve discharge;Protects water heater, appliances and fixtures

• AMTROL ST-5 Thermal Expansion Tank
• one-size
• White

AMTROL ST-5 Thermal Expansion TankAMTROL