NIBCO | sku: 73033 Nibco 3 In. Abs Dwv Hub Cap The NIBCO 3 in. ABS DWV cap is used in residential and commercial drain, waste and vent systems. The ABS DWV cap features a hub connection to fit over the end of a pipe to create a seal. Acrylonitrile-Butadiene-Styrene (ABS) is resistant to a wide... Log in for pricing