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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
    €15,95 - €15,95
    €15,95
    €15,95 - €15,95
    €15,95

    Foster H1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H1B is a brass 1/8" coupler from the ISO-B ...

    View full details
    €15,95 - €15,95
    €15,95
    €15,95 - €15,95
    €15,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €20,95 - €20,95
    €20,95
    €20,95 - €20,95
    €20,95

    Foster H1B-101, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Viton Seal, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H1B-101 is a brass 1/8" coupler from the IS...

    View full details
    €20,95 - €20,95
    €20,95
    €20,95 - €20,95
    €20,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €19,95 - €19,95
    €19,95
    €19,95 - €19,95
    €19,95

    Foster H1B-103, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, EPDM Seal, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H1B-103 is a brass 1/8" coupler from the IS...

    View full details
    €19,95 - €19,95
    €19,95
    €19,95 - €19,95
    €19,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €15,95 - €15,95
    €15,95
    €15,95 - €15,95
    €15,95

    Foster H1BLV, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Less Valve, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H1BLV is a brass 1/8" coupler from the ISO-...

    View full details
    €15,95 - €15,95
    €15,95
    €15,95 - €15,95
    €15,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €16,95 - €16,95
    €16,95
    €16,95 - €16,95
    €16,95

    Foster H1S, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H1S is a plated steel 1/8" coupler from the...

    View full details
    €16,95 - €16,95
    €16,95
    €16,95 - €16,95
    €16,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €19,95 - €19,95
    €19,95
    €19,95 - €19,95
    €19,95

    Foster H1S-101, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 H1S-101 is a plated steel 1/8" coupler from...

    View full details
    €19,95 - €19,95
    €19,95
    €19,95 - €19,95
    €19,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €47,95 - €47,95
    €47,95
    €47,95 - €47,95
    €47,95

    Foster H1S/S, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 H1S/S is a 303 stainless steel 1/8" coupler...

    View full details
    €47,95 - €47,95
    €47,95
    €47,95 - €47,95
    €47,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €51,95 - €51,95
    €51,95
    €51,95 - €51,95
    €51,95

    Foster H1S/S-101, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 H1S/S-101 is a 303 stainless steel 1/8" cou...

    View full details
    €51,95 - €51,95
    €51,95
    €51,95 - €51,95
    €51,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €51,95 - €51,95
    €51,95
    €51,95 - €51,95
    €51,95

    Foster H1S/S-104, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Silicone Seal, 303 Stainless Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H1S/S-104 is a 303 stainless steel 1/8" cou...

    View full details
    €51,95 - €51,95
    €51,95
    €51,95 - €51,95
    €51,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €20,95 - €20,95
    €20,95
    €20,95 - €20,95
    €20,95

    Foster H1S4, 1/8" ISO-B Hydraulic Coupler x 7/16"-20 SAE, ISO-B Series, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H1S4 is a plated steel 1/8" coupler from th...

    View full details
    €20,95 - €20,95
    €20,95
    €20,95 - €20,95
    €20,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €18,95 - €18,95
    €18,95
    €18,95 - €18,95
    €18,95

    Foster H2B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2B is a brass 1/4" coupler from the ISO-B ...

    View full details
    €18,95 - €18,95
    €18,95
    €18,95 - €18,95
    €18,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €22,95 - €22,95
    €22,95
    €22,95 - €22,95
    €22,95

    Foster H2B-101, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Viton Seal, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2B-101 is a brass 1/4" coupler from the IS...

    View full details
    €22,95 - €22,95
    €22,95
    €22,95 - €22,95
    €22,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €23,95 - €23,95
    €23,95
    €23,95 - €23,95
    €23,95

    Foster H2B-102, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Neoprene Seal, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2B-102 is a brass 1/4" coupler from the IS...

    View full details
    €23,95 - €23,95
    €23,95
    €23,95 - €23,95
    €23,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €23,95 - €23,95
    €23,95
    €23,95 - €23,95
    €23,95

    Foster H2B-103, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, EPDM Seal, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2B-103 is a brass 1/4" coupler from the IS...

    View full details
    €23,95 - €23,95
    €23,95
    €23,95 - €23,95
    €23,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €19,95 - €19,95
    €19,95
    €19,95 - €19,95
    €19,95

    Foster H2BLV, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Less Valve, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2BLV is a brass 1/4" coupler from the ISO-...

    View full details
    €19,95 - €19,95
    €19,95
    €19,95 - €19,95
    €19,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €17,95 - €17,95
    €17,95
    €17,95 - €17,95
    €17,95

    Foster H2S, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2S is a plated steel 1/4" coupler from the...

    View full details
    €17,95 - €17,95
    €17,95
    €17,95 - €17,95
    €17,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €20,95 - €20,95
    €20,95
    €20,95 - €20,95
    €20,95

    Foster H2S-101, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S-101 is a plated steel 1/4" coupler from...

    View full details
    €20,95 - €20,95
    €20,95
    €20,95 - €20,95
    €20,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €20,95 - €20,95
    €20,95
    €20,95 - €20,95
    €20,95

    Foster H2S-103, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, EPDM Seal, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2S-103 is a plated steel 1/4" coupler from...

    View full details
    €20,95 - €20,95
    €20,95
    €20,95 - €20,95
    €20,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €21,95 - €21,95
    €21,95
    €21,95 - €21,95
    €21,95

    Foster H2S-104, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Silicone Seal, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2S-104 is a plated steel 1/4" coupler from...

    View full details
    €21,95 - €21,95
    €21,95
    €21,95 - €21,95
    €21,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €49,95 - €49,95
    €49,95
    €49,95 - €49,95
    €49,95

    Foster H2S/S, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S/S is a 303 stainless steel 1/4" coupler...

    View full details
    €49,95 - €49,95
    €49,95
    €49,95 - €49,95
    €49,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €51,95 - €51,95
    €51,95
    €51,95 - €51,95
    €51,95

    Foster H2S/S-101, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S/S-101 is a 303 stainless steel 1/4" cou...

    View full details
    €51,95 - €51,95
    €51,95
    €51,95 - €51,95
    €51,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €52,95 - €52,95
    €52,95
    €52,95 - €52,95
    €52,95

    Foster H2S/S-103, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S/S-103 is a 303 stainless steel 1/4" cou...

    View full details
    €52,95 - €52,95
    €52,95
    €52,95 - €52,95
    €52,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €53,95 - €53,95
    €53,95
    €53,95 - €53,95
    €53,95

    Foster H2S/S-104, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Silicone Seal, 303 Stainless Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2S/S-104 is a 303 stainless steel 1/4" cou...

    View full details
    €53,95 - €53,95
    €53,95
    €53,95 - €53,95
    €53,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €49,95 - €49,95
    €49,95
    €49,95 - €49,95
    €49,95

    Foster H2S/SLV, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Less Valve, 303 Stainless Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H2S/SLV is a 303 stainless steel 1/4" coupl...

    View full details
    €49,95 - €49,95
    €49,95
    €49,95 - €49,95
    €49,95