Interpump WS202 high pressure 47 series pump, RS500 gearbox, VRT3 unloader valve, adjustable chemical injector and inlet filter sub assembly with a 1 hollow / female shaft for an engine driven power washer. Pressure - 200 Bar / 2900 PSI. Water Flow - 21 Litres Per Minute. Minimum Required Power - 10.0HP / 7.35kW. For SAE J609 A-B flange. Female Shaft - 1 / 25.4mm. VRT3 Unloader Valve With ES1 Easy Start. Inlet - 3/4 Hose Barb. Manifold - Nickel Plated Brass. Suitable for Honda GX390K1QX engine. 23B Solutions is a leading provider of industrial fluid pump systems and the related parts/accessories. We specialise in high pressure, high temperature, stainless steel, misting, electric, engine driven and hydraulically driven water based systems.