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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
    €43,95 - €43,95
    €43,95
    €43,95 - €43,95
    €43,95

    Foster H4S10, 1/2" ISO-B Hydraulic Coupler x 7/8"-14 SAE, ISO-B Series, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H4S10 is a plated steel 1/2" coupler from t...

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    €43,95 - €43,95
    €43,95
    €43,95 - €43,95
    €43,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €79,95 - €79,95
    €79,95
    €79,95 - €79,95
    €79,95

    Foster H6B, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H6B is a brass 3/4" coupler from the ISO-B ...

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    €79,95 - €79,95
    €79,95
    €79,95 - €79,95
    €79,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €93,95 - €93,95
    €93,95
    €93,95 - €93,95
    €93,95

    Foster H6B-101, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6B-101 is a brass 3/4" coupler from the IS...

    View full details
    €93,95 - €93,95
    €93,95
    €93,95 - €93,95
    €93,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €87,95 - €87,95
    €87,95
    €87,95 - €87,95
    €87,95

    Foster H6B-103, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6B-103 is a brass 3/4" coupler from the IS...

    View full details
    €87,95 - €87,95
    €87,95
    €87,95 - €87,95
    €87,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €91,95 - €91,95
    €91,95
    €91,95 - €91,95
    €91,95

    Foster H6B-104, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Silicone Seal, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H6B-104 is a brass 3/4" coupler from the IS...

    View full details
    €91,95 - €91,95
    €91,95
    €91,95 - €91,95
    €91,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €62,95 - €62,95
    €62,95
    €62,95 - €62,95
    €62,95

    Foster H6S, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H6S is a plated steel 3/4" coupler from the...

    View full details
    €62,95 - €62,95
    €62,95
    €62,95 - €62,95
    €62,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €70,95 - €70,95
    €70,95
    €70,95 - €70,95
    €70,95

    Foster H6S-101, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6S-101 is a plated steel 3/4" coupler from...

    View full details
    €70,95 - €70,95
    €70,95
    €70,95 - €70,95
    €70,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €70,95 - €70,95
    €70,95
    €70,95 - €70,95
    €70,95

    Foster H6S-102, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Neoprene Seal, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H6S-102 is a plated steel 3/4" coupler from...

    View full details
    €70,95 - €70,95
    €70,95
    €70,95 - €70,95
    €70,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €68,95 - €68,95
    €68,95
    €68,95 - €68,95
    €68,95

    Foster H6S-103, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6S-103 is a plated steel 3/4" coupler from...

    View full details
    €68,95 - €68,95
    €68,95
    €68,95 - €68,95
    €68,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €183,95 - €183,95
    €183,95
    €183,95 - €183,95
    €183,95

    Foster H6S/S, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6S/S is a 303 stainless steel 3/4" coupler...

    View full details
    €183,95 - €183,95
    €183,95
    €183,95 - €183,95
    €183,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €194,95 - €194,95
    €194,95
    €194,95 - €194,95
    €194,95

    Foster H6S/S-101, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6S/S-101 is a 303 stainless steel 3/4" cou...

    View full details
    €194,95 - €194,95
    €194,95
    €194,95 - €194,95
    €194,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €192,95 - €192,95
    €192,95
    €192,95 - €192,95
    €192,95

    Foster H6S/S-103, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6S/S-103 is a 303 stainless steel 3/4" cou...

    View full details
    €192,95 - €192,95
    €192,95
    €192,95 - €192,95
    €192,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €186,95 - €186,95
    €186,95
    €186,95 - €186,95
    €186,95

    Foster H6S/SLV, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6S/SLV is a 303 stainless steel 3/4" coupl...

    View full details
    €186,95 - €186,95
    €186,95
    €186,95 - €186,95
    €186,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €65,95 - €65,95
    €65,95
    €65,95 - €65,95
    €65,95

    Foster H6S12, 3/4" ISO-B Hydraulic Coupler x 1-1/16"-12 SAE, ISO-B Series, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H6S12 is a plated steel 3/4" coupler from t...

    View full details
    €65,95 - €65,95
    €65,95
    €65,95 - €65,95
    €65,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €63,95 - €63,95
    €63,95
    €63,95 - €63,95
    €63,95

    Foster H6SLV, 3/4" ISO-B Hydraulic Coupler x 3/4" 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 H6SLV is a plated steel 3/4" coupler from t...

    View full details
    €63,95 - €63,95
    €63,95
    €63,95 - €63,95
    €63,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €121,95 - €121,95
    €121,95
    €121,95 - €121,95
    €121,95

    Foster H8B, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Brass

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H8B is a brass 1" coupler from the ISO-B Se...

    View full details
    €121,95 - €121,95
    €121,95
    €121,95 - €121,95
    €121,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €134,95 - €134,95
    €134,95
    €134,95 - €134,95
    €134,95

    Foster H8B-101, 1" ISO-B Hydraulic Coupler x 1" 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 H8B-101 is a brass 1" coupler from the ISO-...

    View full details
    €134,95 - €134,95
    €134,95
    €134,95 - €134,95
    €134,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €136,95 - €136,95
    €136,95
    €136,95 - €136,95
    €136,95

    Foster H8B-103, 1" ISO-B Hydraulic Coupler x 1" 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 H8B-103 is a brass 1" coupler from the ISO-...

    View full details
    €136,95 - €136,95
    €136,95
    €136,95 - €136,95
    €136,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €76,95 - €76,95
    €76,95
    €76,95 - €76,95
    €76,95

    Foster H8S, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Plated Steel

    In stock

    Reliable, leak-free hydraulic connections built to the most widely used industrial standard. The Foster H8S is a plated steel 1" coupler from the I...

    View full details
    €76,95 - €76,95
    €76,95
    €76,95 - €76,95
    €76,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €89,95 - €89,95
    €89,95
    €89,95 - €89,95
    €89,95

    Foster H8S-101, 1" ISO-B Hydraulic Coupler 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 H8S-101 is a plated steel 1" coupler from t...

    View full details
    €89,95 - €89,95
    €89,95
    €89,95 - €89,95
    €89,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €271,95 - €271,95
    €271,95
    €271,95 - €271,95
    €271,95

    Foster H8S/S, 1" ISO-B Hydraulic Coupler 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 H8S/S is a 303 stainless steel 1" coupler f...

    View full details
    €271,95 - €271,95
    €271,95
    €271,95 - €271,95
    €271,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €287,95 - €287,95
    €287,95
    €287,95 - €287,95
    €287,95

    Foster H8S/S-101, 1" ISO-B Hydraulic Coupler 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 H8S/S-101 is a 303 stainless steel 1" coupl...

    View full details
    €287,95 - €287,95
    €287,95
    €287,95 - €287,95
    €287,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €284,95 - €284,95
    €284,95
    €284,95 - €284,95
    €284,95

    Foster H8S/S-103, 1" ISO-B Hydraulic Coupler 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 H8S/S-103 is a 303 stainless steel 1" coupl...

    View full details
    €284,95 - €284,95
    €284,95
    €284,95 - €284,95
    €284,95
  • Foster FHS4M4B-103, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, EPDM Seal, Brass
    €89,95 - €89,95
    €89,95
    €89,95 - €89,95
    €89,95

    Foster H8S16, 1" ISO-B Hydraulic Coupler 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 H8S16 is a plated steel 1" coupler from the...

    View full details
    €89,95 - €89,95
    €89,95
    €89,95 - €89,95
    €89,95