Charlotte Pipe 4-in x 4-in PVC DWV Hub 45 Degree Elbow for Sanitary DrainPVC fittings are for drain, waste and vent purposes. They are used in gravity fed waste elimination systems and are for Non Pressure systems where temperatures will not exceed 140 F. PVC is lightweight and easy to install. They require no special tools for cutting, and be installed with solvent cementing, threading, flanging, and roll grooved joining. Conforms to meet standards: ASTM D 1784, ASTM D 2665, ASTM D 3311 and NSF 14 Used to turn the pipe 45