1/2" 45 Degree Elbow PVC Fitting Connector DO NOT use these fittings for plumbing projects. The 45 degree ell PVC fitting is used to change directions at a more gradual pace. They are essential for making the roof on a pitched roof greenhouse and other applications where 45 degrees is needed. If you need a different angle, see our adjustable fitting. Both outlets are non-threaded sockets 1/2" Fittings fit on 1/2" Schedule 40 PVC or Furniture Grade PVC. Please check out ourPVC Sizing Guide (Specification Sheet)to make sure that you order the correct size PVC Fittings. PVC is NOT measured by the outside diameter, and doing so will result in receiving fittings that are too big for your pipe. Furniture Grade means this fitting has a non-marked, glossy finish.