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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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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 1,102.00
$ 1,102.00 - $ 1,102.00
$ 1,102.00
$ 881.00
$ 881.00 - $ 881.00
$ 881.00

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

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S16 is a steel 1" plug in the FHK Serie...

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$ 1,102.00
$ 1,102.00 - $ 1,102.00
$ 1,102.00
$ 881.00
$ 881.00 - $ 881.00
$ 881.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 1,090.00
$ 1,090.00 - $ 1,090.00
$ 1,090.00
$ 872.00
$ 872.00 - $ 872.00
$ 872.00

Foster K8S-101, 1" ISO-B Hydraulic Plug x 1" 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 K8S-101 is a steel 1" plug in the FHK Ser...

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$ 1,090.00
$ 1,090.00 - $ 1,090.00
$ 1,090.00
$ 872.00
$ 872.00 - $ 872.00
$ 872.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 3,423.00
$ 3,423.00 - $ 3,423.00
$ 3,423.00
$ 2,740.00
$ 2,740.00 - $ 2,740.00
$ 2,740.00

Foster K8S/S-103, 1" ISO-B Hydraulic Plug x 1" 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 K8S/S-103 is a 303 stainless 1" plug in t...

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$ 3,423.00
$ 3,423.00 - $ 3,423.00
$ 3,423.00
$ 2,740.00
$ 2,740.00 - $ 2,740.00
$ 2,740.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 3,488.00
$ 3,488.00 - $ 3,488.00
$ 3,488.00
$ 2,790.00
$ 2,790.00 - $ 2,790.00
$ 2,790.00

Foster K8S/S-101, 1" ISO-B Hydraulic Plug x 1" 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 K8S/S-101 is a 303 stainless 1" plug in t...

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$ 3,488.00
$ 3,488.00 - $ 3,488.00
$ 3,488.00
$ 2,790.00
$ 2,790.00 - $ 2,790.00
$ 2,790.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 3,261.00
$ 3,261.00 - $ 3,261.00
$ 3,261.00
$ 2,609.00
$ 2,609.00 - $ 2,609.00
$ 2,609.00

Foster K8S/S, 1" ISO-B Hydraulic Plug x 1" 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 K8S/S is a 303 stainless 1" plug in the F...

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$ 3,261.00
$ 3,261.00 - $ 3,261.00
$ 3,261.00
$ 2,609.00
$ 2,609.00 - $ 2,609.00
$ 2,609.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 864.00
$ 864.00 - $ 864.00
$ 864.00
$ 691.00
$ 691.00 - $ 691.00
$ 691.00

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

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S is a steel 1" plug in the FHK Series,...

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$ 864.00
$ 864.00 - $ 864.00
$ 864.00
$ 691.00
$ 691.00 - $ 691.00
$ 691.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 1,408.00
$ 1,408.00 - $ 1,408.00
$ 1,408.00
$ 1,125.00
$ 1,125.00 - $ 1,125.00
$ 1,125.00

Foster K8B-103, 1" ISO-B Hydraulic Plug x 1" 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 K8B-103 is a brass 1" plug in the FHK Ser...

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$ 1,408.00
$ 1,408.00 - $ 1,408.00
$ 1,408.00
$ 1,125.00
$ 1,125.00 - $ 1,125.00
$ 1,125.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 1,429.00
$ 1,429.00 - $ 1,429.00
$ 1,429.00
$ 1,143.00
$ 1,143.00 - $ 1,143.00
$ 1,143.00

Foster K8B-101, 1" ISO-B Hydraulic Plug x 1" 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 K8B-101 is a brass 1" plug in the FHK Ser...

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$ 1,429.00
$ 1,429.00 - $ 1,429.00
$ 1,429.00
$ 1,143.00
$ 1,143.00 - $ 1,143.00
$ 1,143.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 1,139.00
$ 1,139.00 - $ 1,139.00
$ 1,139.00
$ 911.00
$ 911.00 - $ 911.00
$ 911.00

Foster K8B, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8B is a brass 1" plug in the FHK Series,...

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$ 1,139.00
$ 1,139.00 - $ 1,139.00
$ 1,139.00
$ 911.00
$ 911.00 - $ 911.00
$ 911.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 588.00
$ 588.00 - $ 588.00
$ 588.00
$ 471.00
$ 471.00 - $ 471.00
$ 471.00

Foster K6SLV, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6SLV is a steel 3/4" plug in the FHK Ser...

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$ 588.00
$ 588.00 - $ 588.00
$ 588.00
$ 471.00
$ 471.00 - $ 471.00
$ 471.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 733.00
$ 733.00 - $ 733.00
$ 733.00
$ 586.00
$ 586.00 - $ 586.00
$ 586.00

Foster K6S12, 3/4" ISO-B Hydraulic Plug x 1-1/16"-12 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S12 is a steel 3/4" plug in the FHK Ser...

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$ 733.00
$ 733.00 - $ 733.00
$ 733.00
$ 586.00
$ 586.00 - $ 586.00
$ 586.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 705.00
$ 705.00 - $ 705.00
$ 705.00
$ 564.00
$ 564.00 - $ 564.00
$ 564.00

Foster K6S-103, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6S-103 is a steel 3/4" plug in the FHK S...

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$ 705.00
$ 705.00 - $ 705.00
$ 705.00
$ 564.00
$ 564.00 - $ 564.00
$ 564.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 703.00
$ 703.00 - $ 703.00
$ 703.00
$ 564.00
$ 564.00 - $ 564.00
$ 564.00

Foster K6S-102, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Neoprene Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S-102 is a steel 3/4" plug in the FHK S...

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$ 703.00
$ 703.00 - $ 703.00
$ 703.00
$ 564.00
$ 564.00 - $ 564.00
$ 564.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 717.00
$ 717.00 - $ 717.00
$ 717.00
$ 574.00
$ 574.00 - $ 574.00
$ 574.00

Foster K6S-101, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6S-101 is a steel 3/4" plug in the FHK S...

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$ 717.00
$ 717.00 - $ 717.00
$ 717.00
$ 574.00
$ 574.00 - $ 574.00
$ 574.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 1,905.00
$ 1,905.00 - $ 1,905.00
$ 1,905.00
$ 1,523.00
$ 1,523.00 - $ 1,523.00
$ 1,523.00

Foster K6S/SLV, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6S/SLV is a 303 stainless 3/4" plug in t...

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$ 1,905.00
$ 1,905.00 - $ 1,905.00
$ 1,905.00
$ 1,523.00
$ 1,523.00 - $ 1,523.00
$ 1,523.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 2,030.00
$ 2,030.00 - $ 2,030.00
$ 2,030.00
$ 1,626.00
$ 1,626.00 - $ 1,626.00
$ 1,626.00

Foster K6S/S-103, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6S/S-103 is a 303 stainless 3/4" plug in...

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$ 2,030.00
$ 2,030.00 - $ 2,030.00
$ 2,030.00
$ 1,626.00
$ 1,626.00 - $ 1,626.00
$ 1,626.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 2,004.00
$ 2,004.00 - $ 2,004.00
$ 2,004.00
$ 1,603.00
$ 1,603.00 - $ 1,603.00
$ 1,603.00

Foster K6S/S-101, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6S/S-101 is a 303 stainless 3/4" plug in...

View full details
$ 2,004.00
$ 2,004.00 - $ 2,004.00
$ 2,004.00
$ 1,603.00
$ 1,603.00 - $ 1,603.00
$ 1,603.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 1,868.00
$ 1,868.00 - $ 1,868.00
$ 1,868.00
$ 1,495.00
$ 1,495.00 - $ 1,495.00
$ 1,495.00

Foster K6S/S, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6S/S is a 303 stainless 3/4" plug in the...

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$ 1,868.00
$ 1,868.00 - $ 1,868.00
$ 1,868.00
$ 1,495.00
$ 1,495.00 - $ 1,495.00
$ 1,495.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 653.00
$ 653.00 - $ 653.00
$ 653.00
$ 522.00
$ 522.00 - $ 522.00
$ 522.00

Foster K6S, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S is a steel 3/4" plug in the FHK Serie...

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$ 653.00
$ 653.00 - $ 653.00
$ 653.00
$ 522.00
$ 522.00 - $ 522.00
$ 522.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 860.00
$ 860.00 - $ 860.00
$ 860.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00

Foster K6B-103, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6B-103 is a brass 3/4" plug in the FHK S...

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$ 860.00
$ 860.00 - $ 860.00
$ 860.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 909.00
$ 909.00 - $ 909.00
$ 909.00
$ 727.00
$ 727.00 - $ 727.00
$ 727.00

Foster K6B-101, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6B-101 is a brass 3/4" plug in the FHK S...

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$ 909.00
$ 909.00 - $ 909.00
$ 909.00
$ 727.00
$ 727.00 - $ 727.00
$ 727.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 707.00
$ 707.00 - $ 707.00
$ 707.00
$ 565.00
$ 565.00 - $ 565.00
$ 565.00

Foster K6B, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6B is a brass 3/4" plug in the FHK Serie...

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$ 707.00
$ 707.00 - $ 707.00
$ 707.00
$ 565.00
$ 565.00 - $ 565.00
$ 565.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 375.00
$ 375.00 - $ 375.00
$ 375.00
$ 300.00
$ 300.00 - $ 300.00
$ 300.00

Foster K4SLV, 1/2" ISO-B Hydraulic Plug x 1/2" 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 K4SLV is a steel 1/2" plug in the FHK Ser...

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$ 375.00
$ 375.00 - $ 375.00
$ 375.00
$ 300.00
$ 300.00 - $ 300.00
$ 300.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 450.00
$ 450.00 - $ 450.00
$ 450.00
$ 360.00
$ 360.00 - $ 360.00
$ 360.00

Foster K4S-103, 1/2" ISO-B Hydraulic Plug x 1/2" 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 K4S-103 is a steel 1/2" plug in the FHK S...

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$ 450.00
$ 450.00 - $ 450.00
$ 450.00
$ 360.00
$ 360.00 - $ 360.00
$ 360.00
Save 20% Save %

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