Cash Acme FWL-2 Brass 3/4-in MNPT Pressure Relief Valve

The FWL-2 is a pressure only 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. Completely automatic, the FWL-2 resets after pressure relief. The valve may be installed directly on the tank or in a tee and is appropriate for either side (hot or cold) of the water heater.