Underhill Magnum UltraMAX Premium PRO Series are the most versatile and rugged hose-end nozzles available for syringing sports fields or golf courses. Featuring robust "firefighter quality" construction, UltraMAX nozzles are designed for infield conditioning and as a hand-watering supplement for dry, patchy turf. Also for stadium and playground wash downs and equipment clean-ups. The TurboShift model has a dual variable flow that can be shifted from light coverage to higher volume fog, jet stream, or fan pattern. Ideal for golf course isolated dry spots on greens and fairways. This high volume model opens at 12-17 GPM and can be "turbo shifted" to 20 to 43 GPM. The ergonomically-designed pistol grip or firefighter grip (sold separately) have sturdy ball valvesand push-pull on/off control handles. 2/3" inlet. Leak-proof and virtually indestructible, UltraMAX nozzles are constructed from high tech composite internal material, aircraft aluminum, brass and TPR rubber.