NEW Upgrade Replacement Pump 020453 SKU: 1001.7928 Never need to add or change pump oil MANUFACTURER and SELLER WARRANTY û FACTORY TESTED Max. volume: 2.2-2.5 GPM Max. discharge pressure: 3000 PSI Max. pump speed: 3500 RPM Shaft diameter: 7/8ö (hollow) Built-In unloader and chemical injector Built-In easy start valve Stainless steel plungers Weight: 7.5 lbs Inlet port ?ö FGH with EZ Grip connection (garden hose) LONG TUBE Outlet connection: 22mm (as shown) LONG TUBE Includes Engine Shaft Key and Thermal Brass Relief Valve Our Pumps use the proper BRASS thermal relief valves not the aluminum version. Aluminum reacts with the water (electrolysis) and accumulates calcium and lime deposits that stop the valve from opening when the pump water gets too hot. When this happens it destroys the soft internal parts inside the pump (seals valves unloader). Unit may require longer mounting bolts which can be obtained from your local hardware store.