Katalyst air-induction technology maximizes the air/water mix for a powerful, even flow Optimized sprayface with 48 nozzles delivers a more focused coverage of large water droplets Minimizes wasteful overspray and increases cleaning and hair-rinsing performance MasterClean(TM) spray face with translucent nozzles is easy to clean 1.75 gpm (gallons per minute) flow rate 1/2-inch NPT connection Coordinates with Devonshire Faucets and accessories Shower arm and flange not included Wall-mount Kohler finishes resist corrosion and tarnishing