Internal Coupling 1"

The Internal PVC coupling allows you to join two pipes together and still have a smooth section of pipe. Only the center ring of the coupling will show and it is the same diameter as the outside of the pipe. These fittings are not as strong as an external coupling so we carry the classic external couplings as well. Both outlets are non-threaded sockets and are compatible with furniture grade PVC pipe or standard PVC pipe from a hardware store.