Pneumatic Connector T-Type Male Thread 3/8 Air 

It is designed for using to connect with polyethylene, nylon and PU tubing.

Simple push in design for connecting to the tube and provide secure connection, requires no extra sealing.

Elliptical release ring on two ends facilitates pneumatic installations in confined spaces Tube Push Fitting Three Way Hose Pipe Quick Fitting Connector for Quick Connection of Air Piping (6 MM, 5)

Easy to install, insert the plastic tube, the cap can be rotated freely, but its rotation is only used when the angle is wrong when the joint is installed. Used to connect polyethylene, nylon and PU tubes. Mainly used for quick connection of air pipes, pneumatic tools, pipe connection or disconnection without tools.