A series of pneumatic fittings, including plastic pneumatic fittings, pneumatic tube fittings, air fittings, pneumatic push in fittings, one touch tube fittings, push in fittings, plastic push in fittings, metal push in fittings, air hose fittings, air tube fittings, pipe fittings, brass connector, air brake fittings, D. O. T fittings, compact pneumatic fittings, miniature fittings, rapid screw fittings, compression fittings, hand valve, stop fittings, check valve and equivalents of SMC, FESTO, LEGRIS, CAMOZZI, NORGREN, JG, METALWORKS pneumatic fittings. Quick installation. Simple and fiexible. Spacesaving. The tube fitting comes in a wide variety of models to meet all your needs in pneumatic piping. Even after installation, the direction of tubing can be changed freely. The release ring adopts the ellipse design to make it more convenient and laborsaving for disconnection. All taper pipe threads are pre-coated with Teflon with fine seat .