Naco 100 PSI 8"x8"x3" Stub Saddle Tee & Female Branch. Naco is the industries leader in manufacturing PVC pipe, fittings and valves. PVC Pipe is designed for both above and below ground DWV (Drain, Waste, Vent) Applications. Pvc is generally used for both commercial and residential plumbing construction. Naco covers your PVC needs in every industry from agriculture to drainage systems. This Naco 100 PSI 8"x8"x3" Stub Saddle Tee is designed to tap into a Sch. 40 DWV line. This Tee features a 3" Female branch thats ideal for quick pipe connections.