Marketing InformationThe TEST-TITE® combination T-cone test plug offers contractors an efficient and reusable option for testing DWV (drain, waste and vent) systems. Available in many different sizes and compatible with a variety of piping materials (including SCH 40 DWV, copper, PVC, cast iron and more), this economical drain test plug is rust-proof and designed for reuse. The rubber gasket creates positive sealing that effectively tests up to 50 ft of head pressure.