Abstract: A plumbing fitting serving both as a test closure and a trap bushing for a T-fitting. The test and trap fitting comprises a tubular member of circular cross section having an open end and an integrally closed end. The fitting can be inserted through an opening in a wall (if present) and into the intermediate port of a T-fitting constituting a pan of a soil pipe and a vent pipe assembly. The test and trap fitting has an outside diameter such that it is received in the intermediate port of the T-fitting with close tolerance, enabling a fluid-tight connection to be made in any appropriate manner such as by solvent welding. The test and trap fitting serves as a closure for the intermediate port of the T-fitting enabling pressure testing of the plumbing system, or the maintenance of head of water therein. The test and trap fitting can be cut substantially flush with the wall and serves as bushing to which a plumbing fixture trap can be connected in fluid-tight fashion by solvent welding and the like.

Abstract: A closet flange for mounting a water closet and connecting the water closet to standard plumbing means leading to a soil pipe and vent assembly. The closet flange comprises a cylindrical body with upper and lower body portions and an axial bore. The upper body portion defines the entrance end of the body and supports an exterior annular attachment flange at the entrance end. The lower body portion defines the exit end of the body and is configured to connect with the standard plumbing means. The axial bore is provided with standard pipe threads for threaded engagement by a standard threaded screw plug to close the axial bore and seal the axial bore for air or water testing prior to installation of a water closet on the attachment flange.