DescriptionParma 1H Shower Only Trim Kit & Treysta Cartridge Less Showerhead Brushed Nickel Product Information Product Overview Shower Arm Length & Material: 6 Metal Shower ArmValve Type: Pressure BalanceBrand: Gerber Features Cartridge Type: Includes Treysta Ceramic Disc Pressure Balance CartridgeIntegral 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 Sold 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