Adjustable Drip Emitter on Barb 360-degree, Bag of 50 Can be taken apart for easy cleaning The adjustable head will take approximately 22 clicks to be fully open 0-10 GPH adjustable Barbed drip emitter installs into 1/4 micro tubing or into 1/2 drip tubing UV protected; manufactured from superior durable plastics for long life against degradation