Use 700/710 Coupling to connect 2 pieces of either 700 or 710 drip tubing or 1/2" Mr. Soaker Hose together. Compression fittings require no glue. The Black and Red compression fittings are unique, as besides being compression they also have male hose threads to make them very versatile. Example: If you want to make an end cap, simply push on a coupling then screw on a female garden hose cap onto the garden hose threads of the coupling.