Description
6mm tube x 4mm tube Union Connector is a straight union for two tube runs. The listed ends are 6mm and 4mm; check each end individually when joining different tube sizes.
Choosing the right straight union
A straight union joins tube in line. If the route needs to turn, compare an elbow instead. Match both tube outside diameters before ordering. Compare related sizes in metric union connectors, or use the DMfit fitting guide to choose another connection style.
- Sizes stated in the name: 6mm, 4mm
- Product code: AUC0604M
For general working-pressure ratings by tube outside diameter, tube tolerance and applicable threaded fitting torque, see the DMfit fitting pressure, tubing tolerance and thread torque guide. Confirm the material and exact series for this product before using the reference values.







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