TAILONZ PNEUMATIC Copper Male Straight Push-in Fittings PC12-03 (Pack of 10)
Product description
What it is
Tailonz Pneumatic PC12-03 fittings are copper male straight push-in connectors designed for pneumatic tubing. They couple copper hardware with plastic components to create a quick, tool-free connection for small-bore air lines. The set comes in a pack of 10.
What it fits and how it works

These fittings are sized for 12mm Tube OD with a 3/8 BSP thread. They are intended for tubes made from PU, PA, PE or PVC, offering a push-to-connect mechanism that simplifies assembly and maintenance in hobbyist and light-duty engineering contexts. The BSP thread is nominal, and the device is designed to operate within a working range of 0–1 MPa and temperatures up to 60°C.
Performance and limits
On paper, these fittings provide straightforward push-to-connect reliability for compatible plastics and copper fittings. The 0–1 MPa working pressure range suits low-to-mid pressure applications, and the 0–60°C temperature window covers typical workshop and hobby environments. It’s important to note that actual reliability can depend on the tube material, surface finish, and proper seating of the tube in the fitting.



Pros and cons
- Pros: Simple, tool-free installation, compatible with several common plastics, straightforward for quick repairs or prototyping, supplied in a convenient pack of 10.
- Cons: Pull-out strength and vibration resistance may be less robust than metal compression fittings in high-vibration setups, performance is contingent on correct tube material and fitments, not specified for industrial-level high-pressure use.
Who this is for

This set is suitable for DIY enthusiasts, hobbyists, or light-duty pneumatic setups where quick changes are beneficial and the working conditions stay within modest pressure and temperature limits. If you prioritise a fast, non-permanent connection and are working with PU/PA/PE/PVC tubes, these fittings could be convenient.
When it makes sense to buy
Consider these fittings if you need affordable, rapid assembly for small-scale pneumatic projects, educational labs, or workshop demos where 12mm tubing is used and the fit is appropriate for 3/8 BSP threaded components. They’re likely less ideal for high-precision or industrial-grade lines that demand more stringent sealing and high-pressure performance.



What to check before purchasing
- Confirm tube material and outer diameter is compatible with a 12mm OD tube.
- Ensure the BSP thread matches your counterpart and that the mating components are designed for 3/8 BSP.
- Verify operating conditions stay within 0–1 MPa and below 60°C to avoid leaks or failure.
- Inspect tube ends for clean, square cuts to maximise seating in push-in fittings.
Practical use case

Imagine a small shop setup where quick reconfiguration of air lines is useful. You’re connecting a 12mm tube to a compact manifold and anticipate frequent changes for experiments. In this scenario, the PC12-03 pack of 10 gives you ready-to-use fittings without needing tools each time you modify the layout.
How it compares to other approaches
If you need a more durable, vibration-resistant or high-precision option, you might consider metal fittings or compression styles. For quick prototyping or low-pressure layouts with compatible plastics, push-in copper fittings like these offer simplicity and cost efficiency, with the trade-off being potential limitations on force and long-term endurance.



Should you buy it?
Is it worth it? Worth considering if you prioritise fast, reusable connections for low-pressure pneumatic work with compatible tube materials. It may not be the best match for high-demand industrial lines or environments with significant vibration.
Quick FAQ
- Are these suitable for potable air lines? The description focuses on pneumatic use with PU/PA/PE/PVC, potable air suitability isn’t specified.
- Can I reuse a fitting after removal? The push-in design is intended for quick connections, repeated reassembly performance isn’t detailed.
- What temperature range does it tolerate? Up to 60°C as stated, sustained higher temperatures may affect sealing and integrity.
Final note
If your setup aligns with the stated materials, sizes and limits, this pack offers a pragmatic, low-friction path to assemble or reconfigure small pneumatic circuits without tools. Consider your specific application needs, especially pressure stability and vibration, before committing.
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