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Foster ISO-B Series Couplers

Foster ISO-B (FHK) Series hydraulic quick couplers and plugs, compatible with ISO 7241-1 Series B — the most widely used industrial hydraulic interchange. Two-way shut-off seals both halves at disconnect to prevent fluid loss and air inclusion. Manual sleeve connection at zero pressure. Body sizes 1/8" to 1", in RoHS-plated steel, brass, and 303/316 stainless with Buna-N seals.

  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
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    $ 1,109.00
    $ 1,109.00 - $ 1,109.00
    $ 1,109.00
    $ 887.00
    $ 887.00 - $ 887.00
    $ 887.00

    Foster K8S-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8S-101 is a plated steel 1" plug from the ...

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    $ 1,109.00
    $ 1,109.00 - $ 1,109.00
    $ 1,109.00
    $ 887.00
    $ 887.00 - $ 887.00
    $ 887.00
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  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
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    $ 3,317.00
    $ 3,317.00 - $ 3,317.00
    $ 3,317.00
    $ 2,653.00
    $ 2,653.00 - $ 2,653.00
    $ 2,653.00

    Foster K8S/S, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, 303 Stainless Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8S/S is a 303 stainless steel 1" plug from...

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    $ 3,317.00
    $ 3,317.00 - $ 3,317.00
    $ 3,317.00
    $ 2,653.00
    $ 2,653.00 - $ 2,653.00
    $ 2,653.00
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  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
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    $ 3,547.00
    $ 3,547.00 - $ 3,547.00
    $ 3,547.00
    $ 2,838.00
    $ 2,838.00 - $ 2,838.00
    $ 2,838.00

    Foster K8S/S-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8S/S-101 is a 303 stainless steel 1" plug ...

    View full details
    $ 3,547.00
    $ 3,547.00 - $ 3,547.00
    $ 3,547.00
    $ 2,838.00
    $ 2,838.00 - $ 2,838.00
    $ 2,838.00
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  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
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    $ 3,482.00
    $ 3,482.00 - $ 3,482.00
    $ 3,482.00
    $ 2,786.00
    $ 2,786.00 - $ 2,786.00
    $ 2,786.00

    Foster K8S/S-103, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8S/S-103 is a 303 stainless steel 1" plug ...

    View full details
    $ 3,482.00
    $ 3,482.00 - $ 3,482.00
    $ 3,482.00
    $ 2,786.00
    $ 2,786.00 - $ 2,786.00
    $ 2,786.00
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  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
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    $ 1,121.00
    $ 1,121.00 - $ 1,121.00
    $ 1,121.00
    $ 896.00
    $ 896.00 - $ 896.00
    $ 896.00

    Foster K8S16, 1" ISO-B Hydraulic Plug x 15/16"-12 SAE, ISO-B Series, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8S16 is a plated steel 1" plug from the IS...

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    $ 1,121.00
    $ 1,121.00 - $ 1,121.00
    $ 1,121.00
    $ 896.00
    $ 896.00 - $ 896.00
    $ 896.00
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  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
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    $ 878.00
    $ 878.00 - $ 878.00
    $ 878.00
    $ 703.00
    $ 703.00 - $ 703.00
    $ 703.00

    Foster K8SLV, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Less Valve, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster K8SLV is a plated steel 1" plug from the IS...

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    $ 878.00
    $ 878.00 - $ 878.00
    $ 878.00
    $ 703.00
    $ 703.00 - $ 703.00
    $ 703.00
    Save 20% Save %