The 1/2" compression elbow is used in the installation of the 1/2" drip tubing. The 1/2" compression elbow uses a simple wrist action so that the drip tubing is "walked" into the fittings for a very tight fit. No tools, glue or clamps are required. The compression elbow provides the user with a key component needed for a 90 degree layout of the 1/2" drip tubing. Use this compression elbow to expand your drip irrigation system.