Protek's new generation 326 multifunctional fire-fighting pulse water gun is equipped with pulse function and can also choose automatic or low pressure mode. This water gun can effectively control the stability of the jet stream, thereby reducing the fatigue of firefighters and the working pressure of the pump. The optimal flow rate and the maximum optional flow rate can be controlled under stable pressure. The spray pattern can be easily changed through the anti-collision rubber sleeve molded by 120° rotation. The advanced flow selection ring and the opening and closing design of the ball valve help to achieve the best flow performance and high efficiency operation. The control slide valve design can reduce turbulence and control flow, while maintaining high-quality jet flow. The water inlet size is 1-1/2” (38mm).