SINGLE FUNCTION SHOWERHEAD: Rain showerhead with adjustable swivel ball joint for precise spray adjustment and angled nozzles that provide a drenching, full-coverage rainfall spray; ideal for everyday use, 1.75gpm (6.6 lpm) flow rate EASY TO USE, EASY TO CLEAN: MasterClean sprayface features an easy to clean surface that withstands mineral buildup and maximizes spray performance; Kohler shower heads resist corrosion and tarnishing EASY TO INSTALL RAINFALL SHOWERHEAD: Upgrade your shower system with this sleek single function, ceiling or wall-mounted SHOWERHEAD that easily attaches to a standard 1/2" NPT inlet connection ADDITIONAL HARDWARE NEEDED: Showerhead does not include shower arm and flange, which are sold separately; recommended for use with Kohler Hydrorail Shower Columns K-45210, K-45212, K-45211, and K-45211 EPA AND CEC CERTIFIED: Kohler rain setting shower heads are WaterSense certified and meet EPA criteria, this product is also registered with the California Energy Commission (CEC)(6.30.18)