This KOHLER Purist single-function showerhead brings substantial water savings to your bathroom with a 1.5 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.