... PU,PV,PE,PY,PZA,PU,PG,PGJ,etc pneumatic quick fitting1. Simple and smart, kinds of models, ... any string pipe requirements.2. Even if installation, plastic pipe and rotate at random3. Release ring adopts ... sealant. )Convenient One touch fittings provide instant tubing connections: 2)Elliptical release ring help to connect the tube easily by manual, ... /16-N01PC1/2-N02 Quick Connecting Tube Fitting PC