Threaded quick coupling, 8mm, 9.5mm pipe Nozzle connector, Tee, Elbow, End, Ball valve, water filter, ... . Thread: 10/24unc-2A, 1/86. Suitable: 8mm or 9.5mm steel, copper, HDPE tubing, nylon tubing7. Others: Fog Nozzle, Nozzle connector ... coupling is very suitable and excellent for stainless steel and copper pipe, and they can be reused, when they can't ...