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100 connectors in one mixed-size kit. Includes straight push-fit unions for 4mm, 6mm, 8mm, 10mm and 12mm tube outside diameter (OD). Match the connector to the tube's outside diameter, not its inside diameter.
UK delivery: orders of £10 or more qualify for free Standard Shipping under our current policy, estimated 4–6 working days after dispatch. Final availability is confirmed at checkout.
Mixed-size pneumatic connectors for workshop air lines
A practical mixed-size set of straight push-to-connect fittings for joining compatible pneumatic tubing. The tool-free design makes installation, maintenance and air-line changes quick and straightforward.
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Pack quantity: 100 connectors in total
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Included tube sizes: 4mm, 6mm, 8mm, 10mm and 12mm outside diameter
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Fitting type: equal straight tube-to-tube union
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Connection: push-to-connect at both ends
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Colour: black body with blue release collars
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Typical use: workshop air lines, pneumatic automation, air compressors, DIY systems and maintenance kits
Easy installation
Cut the tube square and clean, then push it fully into the connector and gently pull back to check that it is secure. To remove the tube, depressurise the system, press the release collar and pull the tube out.
Important: Match the fitting to the outside diameter of your tubing. Check tube material, pressure, temperature and media compatibility before use. Intended for standard pneumatic air-line applications; not represented as a certified fitting for braking, medical, gas or other safety-critical systems.
Package contents: 1 × mixed set of 100 straight push-fit connectors covering the five listed sizes.
UK delivery & returns
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Orders under £10: free Economy Shipping, estimated 5–7 working days after dispatch. Standard Shipping is £2.88, estimated 4–6 working days after dispatch.
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Orders of £10 or more: free Standard Shipping, estimated 4–6 working days after dispatch.
Delivery times are estimates. Available services and the final order total are confirmed at checkout. See our shipping policy and 30-day return policy and conditions.
Need a particular size instead? View our individual pneumatic straight union connectors.
