.67" (17 mm) barb coupling for dripline systems. •Easy push-together installation •High quality barbs grab tubing for a secure fit •Unique barb design to reduce insertion force and still retain a secure fit •Non-obtrusive colored fittings to complement natural earth tones •For use with poly pipe •Durable •Great for running a line along a row of potted plants •Connects two sections of tubing •Drip irrigation reduces water usage by up to 70% compared to conventional sprinkler irrigation •Fitting is made of ABS, a type of plastic, treated with UV inhibitors to prevent cracking