heavy duty pressure washer features:♣ lowpressuredetergentinjector.professionaltriggergunwithsafetylock.♣10 inchpneumaticwheels.withon-offswitch.pressuregauge. ♣ High-performance single-cylinder air-cooled, four-stroke OHV gasoline engine ♣ Petrolenginewithlowlubricationprotectiondevice♣Coppercylindergasolinedirect-driveceramicplungerrodpumpcrankshaft