3/4" 4-way Cross PVC Fitting Connector DO NOT use these fittings for plumbing projects. The Cross or 4-way X PVC fitting has four outlets all in the same plane. They are commonly used in wall supports or to tie pipe together from different directions. All four outlets are non-threaded sockets 3/4" Fittings fit on 3/4" 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.