Repair couplings are used to repair a section of a PVC pipe that is leaking. They can also be used as a union in some cases. Wolv-Bite push connect fittings are the quickest fittings to use when connecting pipe together. Simply push the fittings onto the pipe and you are done. The advanced grip ring technology and the O-ring seal, provides a push perfect seal, ensuring the fitting does not leak. Wolv-Bite fittings are also designed to be removed using a disconnect clip so future repairs or piping can be completed.