The PVC DWV two-way cleanout tee is used in residential and commercial drain, waste and vent systems. The PVC DWV two-way cleanout tee features a hub x hub x hub connection and provides a means for clearing potential clogs in certain portions of the drainage system. Polyvinyl chloride (PVC) is the most frequently specified of all thermoplastic materials because of its light weight, durability, and cost-effectiveness.