3500 PSI (3625 PSI pump) 17LMP Flow. Honda GX390 13 HP Air Cooled Petrol Engine. Direct drive high speed HAWK NPM1725GR triplex pump, brass head, ceramic pistons + 20m hose.Fully hot dipped galvanised, fully welded, low vibration steel frame.Central lifting bar.HAWK VBA Unloader valve.Thermoshield dump valve automatically dumps hot water to the ground when machine is left in by-pass too long. (Water temperature rises in by-pass – when the machine is running but trigger not pulled).•4 Large flat free wheels for easy rolling over rough terrain and vibration absorption.Thick axles (27mm) to prevent bending. Size 94x73x90 (cm) Weight 84kg (3500/15045).