The Opulence bathroom collection is a beautiful to a farmhouse, vintage or classic design scape. Simple sophistication is brought to life with its dynamic design and smooth style. This kit offers integral check valves to prevent cross-flow. The shower trim kit comes with a cartridge to be fully compatible with the powerful Gerber Treysta valve, the latest innovation in valve technology. Product Information Product Overview Valve 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 Opulence 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: For Use with Gerber Treysta Rough-In Valves G00gs50 or G00gs52 Series