Name: Push-in Fitting, One touch Fitting, Quick Fitting. Model: TPY Y Union We supply various Push-in Fittings (One touch Fitting, Quick Fitting) which are widely used in pneumatic piping, with superior quality, excellent service and competitive prices. Model: TPY Y Union OEM is available.1) O.D. of tube:Φ4 / Φ6 / Φ8 / Φ10 / Φ12 / Φ162) Thread type:M5*0.8, R1/8, R1/4, R3/8, R1/2, R3/4