Push-Lock Fittings, Quick Fittings 1:Application:Compressed Air,Fluid ... rapid pneumatic fittings, rapid pneumatic fittings for plastic tubes, banjo pneumatic fittings, etc.Push-Lock FittingsTube OD: 04, 05, 06, 08 ... 301 (GP Series)Tightness Ring: Brass (GP Series)Push-In fittings with different shape, only one hand can ... , lathe suchas application if corrosive environment SP series. Push-Lock Fittings