Push To Connect Air Fittings 4mm Tube OD EZ Quick Disconnect Pneumatic Union Connectors Pack Of 12 For Air Tubing In PU PA PE PVC Water And Vacuum Compatible

4mm Push-To-Connect Air Fittings, 12-Pack
✔️ Push-in, 4mm O.D., 12-pack for PU/PA/PE/PVC

Push-to-connect 4mm straight union fittings are designed for quick, tool-free tube connections in compact pneumatic systems. They handle air, vacuum, and water lines (not freezing) and work with PU, PA, PE, and PVC tubes. This 12-pack keeps spares ready for ongoing projects or repairs.

✅ Type: Push in / Push to connect / 4mm straight union
✅ Fluid admitted: Air, Vacuum, Water (non-freezing)
✅ Working pressure: 0-1.0 MPa (0-150 psi)
✅ Applicable tube: PU / PA / PE / PVC
✅ Proof pressure: 3.0 MPa (435 psi)
✅ Seal O-ring: NBR
✅ Lock claw: Stainless Steel (SUS)
✅ Body: Plastic (PET)
✅ Color: Black
✅ Pack size: 12 connectors

💡 What is a push-to-connect air fitting used for in compact pneumatic systems?

It's handy for fast, tool-free tube connections in tight spaces.

• handy for quick assembly in benches, hobby rigs, and small automation projects
• reliable seal with NBR O-ring and SUS lock claw
• works with PU/PA/PE/PVC tubing for air, vacuum, and water lines