The NIBCO 4 in. x 4 in. x 3 in. ABS DWV 45 H x H x H Wye leads a branch line into a horizontal drain line in an ABS sanitary system. It is secured with solvent welds. ABS are 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 using transition fittings. Color: Black.