SharkBite Brass 3/4-in Push-to-connect Thermal Expansion Relief Valve

Replace your expansion tank with the Thermal Expansion Relief Valve (TER-1). Features a pressure only safety relief valve designed specifically for the protection of hot water supply systems where over-pressure conditions are likely to occur as a result of thermal expansion. The valve can be rotated after installation making it easier to reach the shut-off. Ideal for working in tight spaces. 1/2 in. outlet drains at 125 psi. Can be installed in wet lines. Can be rotated for easier and faster installation. No special tools, crimping, glue or soldering is needed. Ideal for working in tight spaces.