Product DescriptionThis Purist single-function shower head brings substantial water savings to your bathroom with a 1.75 GPM flow rate, combined with Katalyst technology for a completely indulgent showering experience. With a new nozzle pattern, internal waterway design, and air-induction system, Katalyst technology maximizes every water drop and creates a richer, more intense flow of water that heightens the shower's sensory experience. By infusing two liters of air per minute, Katalyst delivers a powerful, voluptuous spray that clings to the body with larger, fuller water drops. Kohler K-939-G Features: Katalyst air-induction technology maximizes the air/water mix for a powerful, even flow Optimized spray face with 48 nozzles delivers a more focused coverage of large water droplets Minimizes wasteful overspray and increases cleaning and hair-rinsing performance 1/2NPT connection Coordinates with Purist faucets and accessories Shower arm and flange not included Wall-mount installation Kohler finishes resist corrosion and tarnishing Kohler K-939-G Technologies and Benefits: Katalyst A revolutionary air induction system that makes each drop feel bigger and perform better MasterClean : The spray face features an easy-to-clean surface that withstands mineral buildup Kohler K-939-G Specifications: Shower Head Width: 5-1/2 (left to right) Shower Head Height: 3-5/16" (top to bottom) Flow Rate (GPM): 1.75