Pneumatic connectors are commonly used with 3D printers to connect Bowden tubes to extruders and hot ends, providing a reliable, strong fitting with little to no movement of the tube once fitted.
This is a pack of five PC4-M5 (Blue) pneumatic connectors which accept Bowden tubes with a 4mm outer dimension (4mm OD) and 2mm inner dimension (2mm ID), such as the tubes we sell in the store.
We sell a number of other styles of pneumatic connectors – take a look in our 3D printing section for more!
Specifications
- Type: PC4-M5 Blue
- Thread OD: 4.8mm
- Height: 20.3mm
- Nut OD: 10mm
- Thread length: ~3.9mm
- Input diameter (thread end): 2.5mm
- Compatible PTFE: 4mm OD / 2mm ID
- Weight (per connector): 4.4g
Package Contents
- 5x PC4-M5 (Blue) pneumatic connectors


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