Automatic pressure control with a flow capacity of 95-300 gpm (360-1150 l/min). Includes flush without shutting down, molded rubber teeth for full-fill "power fog", and twist slide-type valve for turbulence-free flow control. May be used with a separate valve or playpipe. Ideal for break-and-extend operations. Lightweight hard coat anodized aluminum materials for maximum resistance to corrosion and wear.1.5" NH (38mm) rigid rocker lug coupling is standard. Nozzle may be switched between standard 100 psi (7 bar) and low pressure.