This Purist single-function showerhead brings innovation to your bathroom with Katalyst, a cutting-edge technology that intensifies the flow of water for a completely indulgent showering experience. With a new nozzle pattern, internal waterway design, and air-induction system, this 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. Katalyst® air-induction technology maximizes the air/water mix for a powerful, even flow. Optimized sprayface with 66 nozzles delivers a more focused coverage of large water droplets. Minimizes wasteful overspray and increases cleaning and hair-rinsing performance. MasterClean™ sprayface with translucent nozzles is easy to clean. 2.5 gpm (gallons per minute) flow rate. 1/2-inch NPT connection. Coordinates with Purist faucets and accessories. Showerarm and flange not included. Wall-mount KOHLER finishes resist corrosion and tarnishing.