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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 %
$ 757.00
$ 757.00 - $ 757.00
$ 757.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00

Foster H3B-103, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3B-103 is a brass 3/8" coupler in the FH...

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$ 757.00
$ 757.00 - $ 757.00
$ 757.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00
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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 %
$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 633.00
$ 633.00 - $ 633.00
$ 633.00

Foster H3B-102, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3B-102 is a brass 3/8" coupler in the FH...

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$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 633.00
$ 633.00 - $ 633.00
$ 633.00
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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 %
$ 778.00
$ 778.00 - $ 778.00
$ 778.00
$ 621.00
$ 621.00 - $ 621.00
$ 621.00

Foster H3B-101, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3B-101 is a brass 3/8" coupler in the FH...

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$ 778.00
$ 778.00 - $ 778.00
$ 778.00
$ 621.00
$ 621.00 - $ 621.00
$ 621.00
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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 %
$ 658.00
$ 658.00 - $ 658.00
$ 658.00
$ 527.00
$ 527.00 - $ 527.00
$ 527.00

Foster H3B, 3/8" ISO-B Hydraulic Coupler 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 H3B is a brass 3/8" coupler in the FHK Se...

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$ 658.00
$ 658.00 - $ 658.00
$ 658.00
$ 527.00
$ 527.00 - $ 527.00
$ 527.00
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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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$ 510.00
$ 510.00 - $ 510.00
$ 510.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00

Foster H2S6, 1/4" ISO-B Hydraulic Coupler 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 H2S6 is a steel 1/4" coupler in the FHK S...

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$ 510.00
$ 510.00 - $ 510.00
$ 510.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00
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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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$ 513.00
$ 513.00 - $ 513.00
$ 513.00
$ 411.00
$ 411.00 - $ 411.00
$ 411.00

Foster H2S-104, 1/4" ISO-B Hydraulic Coupler 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 H2S-104 is a steel 1/4" coupler in the FH...

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$ 513.00
$ 513.00 - $ 513.00
$ 513.00
$ 411.00
$ 411.00 - $ 411.00
$ 411.00
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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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$ 501.00
$ 501.00 - $ 501.00
$ 501.00
$ 400.00
$ 400.00 - $ 400.00
$ 400.00

Foster H2S-103, 1/4" ISO-B Hydraulic Coupler 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 H2S-103 is a steel 1/4" coupler in the FH...

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$ 501.00
$ 501.00 - $ 501.00
$ 501.00
$ 400.00
$ 400.00 - $ 400.00
$ 400.00
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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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$ 498.00
$ 498.00 - $ 498.00
$ 498.00
$ 399.00
$ 399.00 - $ 399.00
$ 399.00

Foster H2S-101, 1/4" ISO-B Hydraulic Coupler 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 H2S-101 is a steel 1/4" coupler in the FH...

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$ 498.00
$ 498.00 - $ 498.00
$ 498.00
$ 399.00
$ 399.00 - $ 399.00
$ 399.00
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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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$ 1,204.00
$ 1,204.00 - $ 1,204.00
$ 1,204.00
$ 964.00
$ 964.00 - $ 964.00
$ 964.00

Foster H2S/SLV, 1/4" ISO-B Hydraulic Coupler 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 H2S/SLV is a 303 stainless 1/4" coupler i...

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$ 1,204.00
$ 1,204.00 - $ 1,204.00
$ 1,204.00
$ 964.00
$ 964.00 - $ 964.00
$ 964.00
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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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$ 1,300.00
$ 1,300.00 - $ 1,300.00
$ 1,300.00
$ 1,040.00
$ 1,040.00 - $ 1,040.00
$ 1,040.00

Foster H2S/S-104, 1/4" ISO-B Hydraulic Coupler 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 H2S/S-104 is a 303 stainless 1/4" coupler...

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$ 1,300.00
$ 1,300.00 - $ 1,300.00
$ 1,300.00
$ 1,040.00
$ 1,040.00 - $ 1,040.00
$ 1,040.00
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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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$ 1,275.00
$ 1,275.00 - $ 1,275.00
$ 1,275.00
$ 1,021.00
$ 1,021.00 - $ 1,021.00
$ 1,021.00

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

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$ 1,275.00
$ 1,275.00 - $ 1,275.00
$ 1,275.00
$ 1,021.00
$ 1,021.00 - $ 1,021.00
$ 1,021.00
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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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$ 1,249.00
$ 1,249.00 - $ 1,249.00
$ 1,249.00
$ 999.00
$ 999.00 - $ 999.00
$ 999.00

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

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$ 1,249.00
$ 1,249.00 - $ 1,249.00
$ 1,249.00
$ 999.00
$ 999.00 - $ 999.00
$ 999.00
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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 %
$ 1,204.00
$ 1,204.00 - $ 1,204.00
$ 1,204.00
$ 964.00
$ 964.00 - $ 964.00
$ 964.00

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

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$ 1,204.00
$ 1,204.00 - $ 1,204.00
$ 1,204.00
$ 964.00
$ 964.00 - $ 964.00
$ 964.00
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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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$ 428.00
$ 428.00 - $ 428.00
$ 428.00
$ 343.00
$ 343.00 - $ 343.00
$ 343.00

Foster H2S, 1/4" ISO-B Hydraulic Coupler 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 H2S is a steel 1/4" coupler in the FHK Se...

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$ 428.00
$ 428.00 - $ 428.00
$ 428.00
$ 343.00
$ 343.00 - $ 343.00
$ 343.00
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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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$ 470.00
$ 470.00 - $ 470.00
$ 470.00
$ 376.00
$ 376.00 - $ 376.00
$ 376.00

Foster H2BLV, 1/4" ISO-B Hydraulic Coupler 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 H2BLV is a brass 1/4" coupler in the FHK ...

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$ 470.00
$ 470.00 - $ 470.00
$ 470.00
$ 376.00
$ 376.00 - $ 376.00
$ 376.00
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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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$ 574.00
$ 574.00 - $ 574.00
$ 574.00
$ 459.00
$ 459.00 - $ 459.00
$ 459.00

Foster H2B-103, 1/4" ISO-B Hydraulic Coupler 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 H2B-103 is a brass 1/4" coupler in the FH...

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$ 574.00
$ 574.00 - $ 574.00
$ 574.00
$ 459.00
$ 459.00 - $ 459.00
$ 459.00
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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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$ 576.00
$ 576.00 - $ 576.00
$ 576.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00

Foster H2B-102, 1/4" ISO-B Hydraulic Coupler 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 H2B-102 is a brass 1/4" coupler in the FH...

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$ 576.00
$ 576.00 - $ 576.00
$ 576.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00
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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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$ 548.00
$ 548.00 - $ 548.00
$ 548.00
$ 439.00
$ 439.00 - $ 439.00
$ 439.00

Foster H2B-101, 1/4" ISO-B Hydraulic Coupler 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 H2B-101 is a brass 1/4" coupler in the FH...

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$ 548.00
$ 548.00 - $ 548.00
$ 548.00
$ 439.00
$ 439.00 - $ 439.00
$ 439.00
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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$ 491.00
$ 491.00 - $ 491.00
$ 491.00
$ 393.00
$ 393.00 - $ 393.00
$ 393.00

Foster H1S4, 1/8" ISO-B Hydraulic Coupler 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 H1S4 is a steel 1/8" coupler in the FHK S...

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$ 491.00
$ 491.00 - $ 491.00
$ 491.00
$ 393.00
$ 393.00 - $ 393.00
$ 393.00
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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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$ 484.00
$ 484.00 - $ 484.00
$ 484.00
$ 386.00
$ 386.00 - $ 386.00
$ 386.00

Foster H1S-101, 1/8" ISO-B Hydraulic Coupler 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 H1S-101 is a steel 1/8" coupler in the FH...

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$ 484.00
$ 484.00 - $ 484.00
$ 484.00
$ 386.00
$ 386.00 - $ 386.00
$ 386.00
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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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$ 1,268.00
$ 1,268.00 - $ 1,268.00
$ 1,268.00
$ 1,014.00
$ 1,014.00 - $ 1,014.00
$ 1,014.00

Foster H1S/S-104, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 H1S/S-104 is a 303 stainless 1/8" coupler...

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$ 1,268.00
$ 1,268.00 - $ 1,268.00
$ 1,268.00
$ 1,014.00
$ 1,014.00 - $ 1,014.00
$ 1,014.00
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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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$ 1,261.00
$ 1,261.00 - $ 1,261.00
$ 1,261.00
$ 1,009.00
$ 1,009.00 - $ 1,009.00
$ 1,009.00

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

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$ 1,261.00
$ 1,261.00 - $ 1,261.00
$ 1,261.00
$ 1,009.00
$ 1,009.00 - $ 1,009.00
$ 1,009.00
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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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$ 1,164.00
$ 1,164.00 - $ 1,164.00
$ 1,164.00
$ 931.00
$ 931.00 - $ 931.00
$ 931.00

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

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$ 1,164.00
$ 1,164.00 - $ 1,164.00
$ 1,164.00
$ 931.00
$ 931.00 - $ 931.00
$ 931.00
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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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$ 395.00
$ 395.00 - $ 395.00
$ 395.00
$ 317.00
$ 317.00 - $ 317.00
$ 317.00

Foster H1S, 1/8" ISO-B Hydraulic Coupler 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 H1S is a steel 1/8" coupler in the FHK Se...

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$ 395.00
$ 395.00 - $ 395.00
$ 395.00
$ 317.00
$ 317.00 - $ 317.00
$ 317.00
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