NIBCO | sku: 72117 Nibco 4 In. Abs Dwv Hub X Hub X Fipt Test Tee Connect a branch line into a vertical ABS drain line with the NIBCO 4 in. ABS DWV Hub x Hub x FIPT Test Tee. The tee is designed for use with non-pressurized sanitary systems. ABS is lightweight, safe to handle and easy to install. ABS DWV is joined by... Log in for pricing