Marketing InformationEnsure your appliance is properly connected to piping and fits snugly against the wall with the guy gray white PVC resin fire-rated auxiliary drain outlet box. This recessed outlet box is designed to be installed in the stud bay, keeping your drain piping and auxiliary line hidden from view. It is compatible with nominal 2 in or larger PVC, ABS or metallic drain pipe and 1/2 or 3/4 in copper, CPVC or ASTM 1807 tubing (auxiliary line). Made of high-temperature PVC resin, this fire-rated auxiliary drain outlet box features a snap-on frame and measures 7-7/8 in H x 8-5/16 in W (with faceplate).