Showering is one of the leading ways families use water in the home. Showers account for up to 17 percent of residential, indoor water use, for most families. That adds up to nearly 40 gallons per home per day. That''s nearly 1.2 trillion gallons of water used in the United States annually, just for showering. Retrofitting your shower with a Westbrass WaterSense compliant showerhead, will save a considerable amount of water! These Westbrass shower units are available in 8 in., 12 in., and 16 in. round or square units. Made with 304 stainless steel, these units will last a lifetime. The Westbrass AntiCalc silicone nipples are readily cleanable to provide a luscious rain spray to soothe mind and body.1/2 in. Female IPS brass swivel ball for shower head positioning.2 mm 304 stainless steel for superior durability1.8 gpm restrictor disk to meet EPA WaterSense complianceAntiCalc silicone nozzles allow shower head to maintain a clean and efficient streamSleek flat finish edge to maintain the clean bathroom appearance