Product Information Product Overview Brand: Gerber Features Integral Check Valve: Includes integral check valve for backflow preventionWarranty: Limited lifetime Description Thermostatic Shower Valves feature a limited lifetime warranty and temperature limit device that prevents scalding. Components Includes: Escutcheon and Control Handle AssemblySold Separately Required: Requires Single Handle 3/4 Thermostatic Valve and Volume Control Shut-Off Valves and TrimSold Separately Optional: Deep Wall 3/4 Thermo Valve Extension Kit D155001bt Available