4″ HUB  ABS Cleanout with Plug Test Tee. ABS DWV Cleanout with Plug Test Tee is used in residential and commercial drain, waste and vent applications (non-pressure). The ABS DWV test tee features a hub x hub x cleanout with plug connection is used to test the ?tightness? of the system by assessing potential leakage. Acrylonitrile-Butadiene-Styrene (ABS) is Corrosion resistant as well as resistant to a wide variety of materials ranging from sewage to commercial household chemical formulations. ABS is lightweight, safe to handle and easy to install. ABS DWV is joined by solvent cementing or threading and can easily be connected to steel, copper, or cast iron through the use of transition fittings and are backed by 3-year limited warranty. Do not test or use with compressed air or other gases ASTM D2661 CSA B181.1 NSF/ANSI 14