Our 10" Rain Shower Head features a flow rate of 1/75 gallons per minute and connects to a ½" threaded shower arm (included with shower set). To make cleaning easy, there are flexible silicone nozzles on the shower head: simply rub the silicone with your fingers to easily remove limescale and dirt.Designed in collaboration with Watermark, a plumbing mainstay of Brooklyn, NY for over 30 years, our collection of timeless solid brass faucet and shower sets ship from Watermark's Brooklyn Factory.