PVC- Ell 1" (Furniture Grade White) DO NOT use these fittings for plumbing projects. The Ell or 90 degree L fitting is one of the most common fittings used with PVC pipe. Furniture Grade means this fitting has a non-marked, glossy finish. Both outlets are non-threaded sockets 1" Fittings fit on 1" 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.