Perfect for New & Remodel Bathroom: SR SUN RISE Shower Valve (included) NOT compatible with existing valve, must be removal of existing tile or shower walls. Consider consultation with an installation professional prior to purchase. Enjoy Rain Shower Head and Handheld at the Same Time: If you are looking for a shower faucet that rain shower head and hand shower can work together, this shower set is the best choice! Built in 3-Way Diverter makes it reality. Save Water, Energy and Money: Special 1.8 GPM(6.8 L/min) flow restrictor to meet California energy regulations- Use less water while keeping the shower head high pressure. Adjustable 16 Inch Slide Bar: Included Slide Bar makes it easy to adjust the handheld shower height, wall bar with adjustable slide to accommodate different heights and unique needs. Provides safe and comfortable bathing and showering. Prevent Water Hammer: This pressure balance valve has built-in Shut Off Stops to effectively prevent water hammer noise and control the water pressure. Pressure balance valve's cartridge monitors water pressure balance, helping to protect you from being scalded by sudden changes in hot or cold water pressure.