SharkBite U4482LFA Adapter Service Slip Tee, 1/2 x 1/2 in Run, Push-Fit Run Connection, 1/2 in Branch | The service slip tee adapter allows you to easily add a plumbing line into your existing system. The fitting also commonly serves as an alternative to a saddle valve. The service end of the fitting is a copper tube size (CTS) end that will connect with any 1/2 in SharkBite push-to-connect fitting and it is particularly useful for adding stop valves like straight stop or angle stop. The slip feature allows for 2 in of rigid copper or CPVC pipe to be cut out of an existing line and connected back together by using the disconnect clip to slide the fitting back to the other end of pipe.