Annovi Reverberi Pump 4350 PSI @ 21.0 GPM Horizontal Gas Engine Triplex Plunger Replacement Pressure Washer Pump 20'' armor and cannons and for See Owner s Manual armor and cannons and for decades has forged the best spray guns in the world guns that can handle higher pressures and specialized coatings Honda 13 HP GX Engine–Electric Start : Industry proven performance with the most demanded engine by contractors 5 Max PSI 4350 MaxBar 300 Power EBHP 65 Bore Dia mm 32 Stroke mm 42 Crankshaft ID Stamp 4 Inlet 1 1 2" Outlet 1" Max Temp 140° F Oil Capacity (oz) 110oz Weight 128 RPM 1000 Shaft Size 35mm Shaft Version Solid Shaft Type N Version Annovi Reverberi AR RTD80 300 horizontal gas engine triplex plunger pump is rated up to 21 GPM at max 4350 PSI spins a 35mm solid shaft at 1000 RPM using a 1 ½” inlet and 1” discharge thread