Transition from 2 in. Drain Waste Vent (DWV)/Schedule 40 (SCH40) pipe to 4 in. Sewer and Drain (S&D) fitting with the PVC Increaser/Reducer Adapter. The drain fitting works as an outlet adapter for the Mini Channel™ Drain End Outlet or Bottom Outlet to connect to 4 in. S&D fittings. This increaser/reducer adapter is used to connect two different pipe and fitting types and sizes. The Increaser/Reducer Adapter is made of polyvinyl chloride (PVC) and makes a Hub X Spt solvent-weld connection. Works with the Mini Channel Drain system, part of the NDS Profile Channel series, for draining light flows from pool & spa areas, concrete & paver patios, tennis courts, walkways, and driveways. Meets applicable ASTM standards. For use in non-pressurized underground sewer and drainage applications; maximum working pressure of 5 psi.