Single-Function Shower Head With Katalyst Technology: Round rain shower head features full coverage for a drenching spray experience; shower head rainfall has a flow that is ideal for everyday use, 1.75 gpm (6.6 lpm) flow rate., Polished Chrome Easy to Use, Easy to Clean: Kohler rain shower head with an optimized sprayface and Katalyst technology for a more powerful spray; shower head features a durable finish that resists corrosion and tarnishing, and a MasterClean sprayface that is easy to cleanse, helping prevent mineral buildup Easy to Install Rainfall Shower Head: Upgrade your shower system with this ceiling-mount shower faucet using 1/2" 14 NPT connection Additional Hardware and Equipment Needed: Shower head does not include a shower trim kit or a single-function rainhead shower arm and flange, which are sold separately; choose accessories and showering components from the Statement collection for a coordinated shower faucet set ASME and DOE Shower Heads: Kohler shower heads meet the DOE Energy Policy Act 1992 and ASME A112.18.1/CSA B125.1 criteria; this product is also registered with the California Energy Commission (CEC)