Master Stream Automatic 2.5” NH (65mm). Flow range of 150-1250 gpm (600-4500 l/min). Fully automatic master stream nozzle for use on monitors, ladder pipes, deluge guns, and aerial platforms. Constant nozzle pressure regulated to 100 psi (7 bar). Continuously variable from straight stream to wide fog. Pattern change is accomplished by turning the large, easy to grasp, rubber bumper. Lightweight hardcoat anodized aluminum for maximum resistance to corrosion and wear. 2.5” NH (65mm) rocker lug swivel coupling is standard. 3.0” NH (75mm) or 3.5” NH (90mm) coupling is optional.