DWV (Drain Waste and Vent) fittings can be used for residential and commercial applications. These fittings are durable, environmentally sound and cost effective. DWV fittings are lightweight with enhanced joint integrity and increased abrasion resistance. Eliminates dezincification, galvanic and electrolytic corrosion; with greater permeability resistance of transported fluids. DWV fittings will not pit, rust or scale. These fittings can be used with PVC schedule 40 dual rated pipe. NSF-dwv, ASTM D-1784, ASTM D-2665, ASTM D-3311