The SM-1250 is the most efficient and effective master stream combination nozzle available to the fire service today. The Select-O-Matic is designed to flow from 350 to 1250 gpm and maintain sufficient pressure to apply that flow as an effective fire stream. With the Select-O-Matic no manual gallonage setting is necessary; the spring mechanism within the nozzle adjusts automatically to provide the desired flow. This 2.5″ nozzle is ideal for any master stream application. Ship. wt. 8 lbs.