The NIBCO 4 in. ABS DWV Hub x Hub x Hub Cleanout Tee can be inserted into an ABS sitting hub to reduce to a smaller pipe size. The tee should be used with non-pressurized sanitary systems. 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. Color: Black.