Naco PVC 10" Pip (Press-in-Place) Gasket. 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 PVC 10" Pip (Press-in-Place) Gasket is a rubber ring that is pressed into place to create a leak free seal.