Mechanism grants elevated performance and long life span

The following are EXCLUDED: Wear Parts: O-rings

The safety relief valve protects your power washer pump and system from pressure spikes

3/8" NPT Inlet and Outlet

AR Pump Check Valve Repair Kits cad-supplier Mechanism grants elevated performance andAR Pump check valve repair kits replace all check valves and orings. Order one kit per pump. IMPORTANT: Incorrect installation of pressure washer repair parts has the potential to cause premature pump failure. Professional installation is highly recommended. Pump repair parts are considered wear items and cannot be returned if package is opened.