Quickfitting 1/2 Inch Push To Connect Coupling | Patented Design For Superior PUSH TO CONNECT COUPLING (STRAIGHT CONNECTOR); QuickFitting's patented design delivers superior sealing performance, backed by our 75-year warranty DIY PLUMBING; Our push-to-connect fittings are built for every user from professional contractors to even the most inexperienced users; No open flames or sealants needed EASY and FAST INSTALLATION; Simply CUT and CLEAN the end of the pipe, MARK the insertion depth and PUSH the coupling into place; The disconnect is just as simple and each pack includes a patented Slip Clip removal tool BUILT FOR EVERY JOB; These push fit connectors can be used on any combination of copper, PEX or CPVC tubing for indoor plumbing, outdoor plumbing, heating repair, marine repair, broken pipe repair, water line repair, RV and mobile home repair, and even irrigation WHY CHOOSE QUICKFITTING; QuickFitting pushfit technology features a more secure connection than standard fixtures; Our plumbing pipe fittings are a reusable, durable, long-lasting plumbing solution that are certified lead-free making them safe for water lines and safe for your health