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-6M-L825

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  • DK Lok

    DU-3M-L825

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  • DK Lok

    DU-2M-L825

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  • DK Lok

    DU-25M-L625

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  • DK Lok

    DU-22M-L625

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  • DK Lok

    DU-20M-L625

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  • DK Lok

    DU-18M-L625

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  • DK Lok

    DU-16M-L625

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  • DK Lok

    DU-15M-L625

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  • DK Lok

    DU-12M-L625

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  • DK Lok

    DU-10M-L625

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  • DK Lok

    DU-8M-L625

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  • DK Lok

    DU-6M-L625

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  • DK Lok

    DU-4M-L625

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  • DK Lok

    DU-3M-L625

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  • DK Lok

    DU-2M-L625

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  • DK Lok

    DU-25M-IN

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  • DK Lok

    DU-22M-IN

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  • DK Lok

    DU-20M-IN

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  • DK Lok

    DU-18M-IN

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  • DK Lok

    DU-16M-IN

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  • DK Lok

    DU-15M-IN

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  • DK Lok

    DU-12M-IN

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  • DK Lok

    DU-10M-IN

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