The SharkBite Water Heater Installation Kit is designed to simplify water heater installation. The kit features special push-fit fittings that allow the user to easily connect water distribution pipe. This kit includes U068LF 1/2 inch x 3/4 inch FNPT coupling, U088LF 3/4 inch x 3/4 inch FNPT coupling, 3/4 inch Disconnect Clip. Push to Connect system, quick and easy installation in secondsWorks on any combination of Copper, PE-RT, CPVC, PEX PipeUse to connect to any combination of copper, PEX, CPVC or PE-RT pipesInnovative push-to-connect design makes for quick and easy installationFitting can be rotated on pipe after installation making it easier to work in tight spacesDesigned for potable water distribution as well as hydronic heating applications