... certification. The product line of pneumatic fittings contain the metal push-in fittings rapid pneumatic fittings, rapid pneumatic fittings for plastic ... tubes, banjo pneumatic fittings, etc.Push-Lock FittingsTube OD: 04, 05, 06, 08, 10, 12, ... Collet: AISI 301 (GP Series)Tightness Ring: Brass (GP Series)Push-In fittings with different shape, only one hand can be ...