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.