Tube-to-Tube Configurations

Tube-to-Tube Configurations

(5088 products)

Fittings that join tube to tube: unions, reducing unions, elbows, tees, crosses and bulkhead unions. Use them to splice, branch or turn a run without pipe threads. DK-Lok two-ferrule tube fittings make a gas-tight seal that holds up to vibration and pressure impulse, can be checked with a gap inspection gauge, and can be remade. Sizes run 1/16" to 2" and 2 to 50 mm OD, in 316 SS, brass, carbon steel and specialty alloys.

Need help matching a part number or checking a rating? Call 310-833-3353 or email sales@abesttube.com.


  • DK Lok

    DU-8M-IN

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  • DK Lok

    DU-6M-IN

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  • DK Lok

    DU-4M-IN

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  • DK Lok

    DU-3M-IN

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  • DK Lok

    DU-2M-IN

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  • DK Lok

    DU-25M-M

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  • DK Lok

    DU-22M-M

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  • DK Lok

    DU-20M-M

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  • DK Lok

    DU-18M-M

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  • DK Lok

    DU-16M-M

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  • DK Lok

    DU-15M-M

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  • DK Lok

    DU-12M-M

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  • DK Lok

    DU-10M-M

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  • DK Lok

    DU-8M-M

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  • DK Lok

    DU-6M-M

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  • DK Lok

    DU-4M-M

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  • DK Lok

    DU-3M-M

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  • DK Lok

    DU-2M-M

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  • DK Lok

    DU-25M-HC

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  • DK Lok

    DU-22M-HC

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  • DK Lok

    DU-20M-HC

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  • DK Lok

    DU-18M-HC

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  • DK Lok

    DU-16M-HC

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  • DK Lok

    DU-15M-HC

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