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Hydraulic Quick Couplers

Hydraulic quick couplers join high-pressure fluid lines with a secure, leak-free connection. This collection covers ISO-B, ISO-A, flush face, and specialty hydraulic couplers and plugs in steel, brass, and stainless. Filter by series, body size, thread, and material to match your hydraulic system.

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Original price €12,95 - Original price €12,95
Original price
€12,95
€12,95 - €12,95
Current price €12,95

Foster K3B, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3B is a brass 3/8" plug in the FHK Serie...

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Original price €12,95 - Original price €12,95
Original price
€12,95
€12,95 - €12,95
Current price €12,95
Original price €8,95 - Original price €8,95
Original price
€8,95
€8,95 - €8,95
Current price €8,95

Foster K2SLV, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Less Valve, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2SLV is a steel 1/4" plug in the FHK Ser...

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Original price €8,95 - Original price €8,95
Original price
€8,95
€8,95 - €8,95
Current price €8,95
Original price €11,95 - Original price €11,95
Original price
€11,95
€11,95 - €11,95
Current price €11,95

Foster K2S6, 1/4" ISO-B Hydraulic Plug x 9/16"-18 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S6 is a steel 1/4" plug in the FHK Seri...

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Original price €11,95 - Original price €11,95
Original price
€11,95
€11,95 - €11,95
Current price €11,95
Original price €10,95 - Original price €10,95
Original price
€10,95
€10,95 - €10,95
Current price €10,95

Foster K2S-104, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Silicone Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S-104 is a steel 1/4" plug in the FHK S...

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Original price €10,95 - Original price €10,95
Original price
€10,95
€10,95 - €10,95
Current price €10,95
Original price €10,95 - Original price €10,95
Original price
€10,95
€10,95 - €10,95
Current price €10,95

Foster K2S-103, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, EPDM Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S-103 is a steel 1/4" plug in the FHK S...

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Original price €10,95 - Original price €10,95
Original price
€10,95
€10,95 - €10,95
Current price €10,95
Original price €10,95 - Original price €10,95
Original price
€10,95
€10,95 - €10,95
Current price €10,95

Foster K2S-101, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S-101 is a steel 1/4" plug in the FHK S...

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Original price €10,95 - Original price €10,95
Original price
€10,95
€10,95 - €10,95
Current price €10,95
Original price €18,95 - Original price €18,95
Original price
€18,95
€18,95 - €18,95
Current price €18,95

Foster K2S/SLV, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Less Valve, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S/SLV is a 303 stainless 1/4" plug in t...

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Original price €18,95 - Original price €18,95
Original price
€18,95
€18,95 - €18,95
Current price €18,95
Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95

Foster K2S/S-104, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Silicone Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S/S-104 is a 303 stainless 1/4" plug in...

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Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95
Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95

Foster K2S/S-103, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S/S-103 is a 303 stainless 1/4" plug in...

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Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95
Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95

Foster K2S/S-101, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S/S-101 is a 303 stainless 1/4" plug in...

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Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95
Original price €17,95 - Original price €17,95
Original price
€17,95
€17,95 - €17,95
Current price €17,95

Foster K2S/S, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S/S is a 303 stainless 1/4" plug in the...

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Original price €17,95 - Original price €17,95
Original price
€17,95
€17,95 - €17,95
Current price €17,95
Original price €8,95 - Original price €8,95
Original price
€8,95
€8,95 - €8,95
Current price €8,95

Foster K2S, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S is a steel 1/4" plug in the FHK Serie...

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Original price €8,95 - Original price €8,95
Original price
€8,95
€8,95 - €8,95
Current price €8,95
Original price €9,95 - Original price €9,95
Original price
€9,95
€9,95 - €9,95
Current price €9,95

Foster K2BLV, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Less Valve, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2BLV is a brass 1/4" plug in the FHK Ser...

View full details
Original price €9,95 - Original price €9,95
Original price
€9,95
€9,95 - €9,95
Current price €9,95
Original price €12,95 - Original price €12,95
Original price
€12,95
€12,95 - €12,95
Current price €12,95

Foster K2B-104, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Silicone Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2B-104 is a brass 1/4" plug in the FHK S...

View full details
Original price €12,95 - Original price €12,95
Original price
€12,95
€12,95 - €12,95
Current price €12,95
Original price €11,95 - Original price €11,95
Original price
€11,95
€11,95 - €11,95
Current price €11,95

Foster K2B-103, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, EPDM Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2B-103 is a brass 1/4" plug in the FHK S...

View full details
Original price €11,95 - Original price €11,95
Original price
€11,95
€11,95 - €11,95
Current price €11,95
Original price €12,95 - Original price €12,95
Original price
€12,95
€12,95 - €12,95
Current price €12,95

Foster K2B-102, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Neoprene Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2B-102 is a brass 1/4" plug in the FHK S...

View full details
Original price €12,95 - Original price €12,95
Original price
€12,95
€12,95 - €12,95
Current price €12,95
Original price €12,95 - Original price €12,95
Original price
€12,95
€12,95 - €12,95
Current price €12,95

Foster K2B-101, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Viton Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2B-101 is a brass 1/4" plug in the FHK S...

View full details
Original price €12,95 - Original price €12,95
Original price
€12,95
€12,95 - €12,95
Current price €12,95
Original price €9,95 - Original price €9,95
Original price
€9,95
€9,95 - €9,95
Current price €9,95

Foster K2B, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2B is a brass 1/4" plug in the FHK Serie...

View full details
Original price €9,95 - Original price €9,95
Original price
€9,95
€9,95 - €9,95
Current price €9,95
Original price €7,95 - Original price €7,95
Original price
€7,95
€7,95 - €7,95
Current price €7,95

Foster K1S4, 1/8" ISO-B Hydraulic Plug x 7/16"-20 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1S4 is a steel 1/8" plug in the FHK Seri...

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Original price €7,95 - Original price €7,95
Original price
€7,95
€7,95 - €7,95
Current price €7,95
Original price €8,95 - Original price €8,95
Original price
€8,95
€8,95 - €8,95
Current price €8,95

Foster K1S-101, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1S-101 is a steel 1/8" plug in the FHK S...

View full details
Original price €8,95 - Original price €8,95
Original price
€8,95
€8,95 - €8,95
Current price €8,95
Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95

Foster K1S/S-101, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1S/S-101 is a 303 stainless 1/8" plug in...

View full details
Original price €20,95 - Original price €20,95
Original price
€20,95
€20,95 - €20,95
Current price €20,95
Original price €18,95 - Original price €18,95
Original price
€18,95
€18,95 - €18,95
Current price €18,95

Foster K1S/S, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1S/S is a 303 stainless 1/8" plug in the...

View full details
Original price €18,95 - Original price €18,95
Original price
€18,95
€18,95 - €18,95
Current price €18,95
Original price €6,95 - Original price €6,95
Original price
€6,95
€6,95 - €6,95
Current price €6,95

Foster K1S, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1S is a steel 1/8" plug in the FHK Serie...

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Original price €6,95 - Original price €6,95
Original price
€6,95
€6,95 - €6,95
Current price €6,95
Original price €7,95 - Original price €7,95
Original price
€7,95
€7,95 - €7,95
Current price €7,95

Foster K1BLV, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, Less Valve, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1BLV is a brass 1/8" plug in the FHK Ser...

View full details
Original price €7,95 - Original price €7,95
Original price
€7,95
€7,95 - €7,95
Current price €7,95