Automatic pressure control with a flow capacity of 95-300 gpm (360-1150 l/min). Includes flush without shutting down, patented slide-type valve for turbulence-free flow control, six detent flow positions, molded rubber teeth for full-fill "power fog", and "Gasket Grabber" inlet screen. Pistol grip is mounted below valve (HD-2VPGI), or behind the valve (HD-2VPG). Lightweight hard coat anodized aluminum materials for maximum resistance to corrosion and wear. 2.5" NH (64mm) rocker lug full-time swivel coupling is standard. Nozzle may be switched between standard 100 psi (7 bar) and low pressure.