SharkBite stop tee allows the user to tap into existing supply lines to add fixtures and appliances with the speed and convenience of push-fit connections to the final phase of plumbing projects. The SharkBite stop tee can be used on Copper, CPVC, PEX and PE-RT. Approvals include ASSE 1061, ASME A112.18.1/CSA B125/1. NSF/ANSI 61, NSF/ANSI 372/