3000 PSI @ 4.0 GPM Horizontal Gas Engine Triplex Plunger Replacement Pressure Washer Pump pump psi under 2000 Two air power adjustments and BA9 1000911 Two air power adjustments and variable paint flow settings provide the control you need and the finish you want for every piece Partical Removal: Annovi Reverberi AR RKA4G30AN horizontal gas engine triplex plunger pump is rated up to 4 GPM at max 3000 PSI spins a 24mm solid shaft at 1750 RPM using a 1 2”F inlet and 3 8"F discharge thread 2 Bore Dia mm 18 Stroke mm 12 Crankshaft ID Stamp 4 Inlet 1 2" F Outlet 3 8" F Max Temp 140° F Oil Capacity (oz) 15 Weight 19 RPM 1750 Shaft Size 24mm Shaft Version N Shaft Type Solid