NIBCO | sku: 311033 Nibco 6 In. Pvc Dwv 22-1/2-Degree Hub X Hub Elbow The NIBCO PVC DWV 22-1/2 degree elbow is used in residential and commercial drain, waste and vent systems. The PVC DWV 22-1/2 degree elbow features a hub x hub connection and is used to change the direction of flow. Polyvinyl chloride (PVC) is the most... Log in for pricing