About The Waterpik RSD133M Shower Head, 7" FixedMount RainFall+ Single Spray ChromeThe Waterpik RSD133M Shower Head, 7" FixedMount RainFall+ Single Spray Chrome allows you to enjoy the sensation of escaping under a soothing rain fall. Waterpik shower heads have Optiflow technology, which increases water force up to 30, shower head installs in just minutes included with detailed instructions. This Waterpik shower head has an anticlog nozzles and a flow rate of 2.5 gallons per minute.