Ready, aim, spray! Water supply nozzles (AKA spray nozzles or water hose nozzles), typically come in a pistol grip or twist nozzle design. Products vary by flow rate (gallons per minute or GPM), temperature range, material among other variables. Offerings include hose sprayers for consumer and industrial use. Related items include Water Supply Stops water supply stops, yard hydrants, flow control valves and water supply nozzles.