PVC Pipeworks 1-in x 1-in x 1-in x 1-in dia Adapter Insert Coupling PVC Fitting (10-Pack)

PVC Pipeworks 1-in internal couplers allow you to connect two segments of schedule 40 PVC pipe together. Internal couplings are designed to fit inside of 1-in size schedule 40 PVC pipe, and create a seamless connection between pipe segments. Internal couplings are flush and hidden, so your project looks professionally complete, unlike external couplers.