Great for landscapers. Move plants from around decks or greenhouses without having to cut the lines. This is a 1/4" Quick Disconnect that is available as a coupler and as a tee.
To connect, simply push tubing into fitting. To disconnect, you need to push the small plastic outer shoulder in toward the fitting body. Place a 1/4" washer over the tubing before inserting in the fitting to use as a tool to assist in pressing the shoulder. While pressing, simply pull 1/4" tubing out of fitting.