2-1/2" PVC Elbow, 90°, Schedule 402 1 2" PVC 90 Elbow, Plain End, Schedule 40, Color: Gray. If you need your piping system to get turn or get around something in the way, you will need to bend your pipeline around with PVC elbows. Elbows are most commonly available in 90 degree angles and 45 degree angles, so your pipeline can be directed however you want it. Side elbows are a slightly different piece that are commonly used as corners in projects such as canopies, tents, displays, and