HoldRite Fire-Rated Fixture Outlet Boxes are designed for use in commercial and residential applications and allow for installation of water supply valves during the rough-in phase. Can be installed directly to a stud via flange holes or between studs using a HYCO bar, HoldRite 170, or other HoldRite galvanized bracketing. Outlet Box Assemblies include a supply valve with a quarter-turn handle and a 1/4" or 3/8" threaded compression connection. Can be used with Copper, PEX, or CPVC. Protective debris cover included. Escutcheons, Valve Extension, and other accessories sold separately.