DescriptionParma 1H Shower Only Trim Kit & Treysta Cartridge w/ 5 Function Showerhead 1 75gpm Brushed Nickel Product Information Product Overview Flow Rate: 1.75gpm Max Flow Rate @ 80 psiShower Arm Length & Material: 6 Metal Shower ArmSpray/Stream Function: 5 Functions: Wide Aeration Centerjet Massage and Wide + CenterjetValve Type: Pressure BalanceBrand: Gerber Features Cartridge Type: Includes Treysta Ceramic Disc Pressure Balance CartridgeDual Valve Technology: Features Dual Valve technology which minimizes water pressure loss as setting changesEasy Clean Nozzles: Features Easy Clean Soft-Touch NozzlesEasy-Glide Selector Ring: Features Easy-Glide selector ring for effortless smooth adjustmentIntegral Check Valve: Integral Check Valves in Cartridge Body to Prevent Cross-FlowWarranty: Limited lifetime Description Parma trim kit now includes the new Gerber Treysta Ceramic Disc Pressure Balance Cartridge. A Gerber Treysta rough-in valve body is required and is sold separately. Components Showerhead: Features Parma 5-Function ShowerheadSold Separately Required: For Use with Gerber Treysta Rough-In Valves G00gs50 or G00gs52 SeriesSold Separately Optional: Deep Wall Extension Kit D113001 and Shallow Wall Extension Kit Ga663b11