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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 %
$ 1,722.00
$ 1,722.00 - $ 1,722.00
$ 1,722.00
$ 1,378.00
$ 1,378.00 - $ 1,378.00
$ 1,378.00

Foster H3S/S, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3S/S is a 303 stainless 3/8" coupler in ...

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$ 1,722.00
$ 1,722.00 - $ 1,722.00
$ 1,722.00
$ 1,378.00
$ 1,378.00 - $ 1,378.00
$ 1,378.00
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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 %
$ 742.00
$ 742.00 - $ 742.00
$ 742.00
$ 594.00
$ 594.00 - $ 594.00
$ 594.00

Foster H3S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H3S is a steel 3/8" coupler in the FHK Se...

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$ 742.00
$ 742.00 - $ 742.00
$ 742.00
$ 594.00
$ 594.00 - $ 594.00
$ 594.00
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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 %
$ 885.00
$ 885.00 - $ 885.00
$ 885.00
$ 707.00
$ 707.00 - $ 707.00
$ 707.00

Foster H3B-104, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3B-104 is a brass 3/8" coupler in the FH...

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$ 885.00
$ 885.00 - $ 885.00
$ 885.00
$ 707.00
$ 707.00 - $ 707.00
$ 707.00
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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 %
$ 831.00
$ 831.00 - $ 831.00
$ 831.00
$ 665.00
$ 665.00 - $ 665.00
$ 665.00

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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$ 831.00
$ 831.00 - $ 831.00
$ 831.00
$ 665.00
$ 665.00 - $ 665.00
$ 665.00
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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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$ 868.00
$ 868.00 - $ 868.00
$ 868.00
$ 696.00
$ 696.00 - $ 696.00
$ 696.00

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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$ 868.00
$ 868.00 - $ 868.00
$ 868.00
$ 696.00
$ 696.00 - $ 696.00
$ 696.00
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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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$ 854.00
$ 854.00 - $ 854.00
$ 854.00
$ 682.00
$ 682.00 - $ 682.00
$ 682.00

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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$ 854.00
$ 854.00 - $ 854.00
$ 854.00
$ 682.00
$ 682.00 - $ 682.00
$ 682.00
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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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$ 722.00
$ 722.00 - $ 722.00
$ 722.00
$ 579.00
$ 579.00 - $ 579.00
$ 579.00

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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$ 722.00
$ 722.00 - $ 722.00
$ 722.00
$ 579.00
$ 579.00 - $ 579.00
$ 579.00
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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$ 560.00
$ 560.00 - $ 560.00
$ 560.00
$ 447.00
$ 447.00 - $ 447.00
$ 447.00

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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$ 560.00
$ 560.00 - $ 560.00
$ 560.00
$ 447.00
$ 447.00 - $ 447.00
$ 447.00
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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$ 564.00
$ 564.00 - $ 564.00
$ 564.00
$ 451.00
$ 451.00 - $ 451.00
$ 451.00

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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$ 564.00
$ 564.00 - $ 564.00
$ 564.00
$ 451.00
$ 451.00 - $ 451.00
$ 451.00
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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$ 551.00
$ 551.00 - $ 551.00
$ 551.00
$ 440.00
$ 440.00 - $ 440.00
$ 440.00

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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$ 551.00
$ 551.00 - $ 551.00
$ 551.00
$ 440.00
$ 440.00 - $ 440.00
$ 440.00
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 %
$ 547.00
$ 547.00 - $ 547.00
$ 547.00
$ 438.00
$ 438.00 - $ 438.00
$ 438.00

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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$ 547.00
$ 547.00 - $ 547.00
$ 547.00
$ 438.00
$ 438.00 - $ 438.00
$ 438.00
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 %
$ 1,322.00
$ 1,322.00 - $ 1,322.00
$ 1,322.00
$ 1,059.00
$ 1,059.00 - $ 1,059.00
$ 1,059.00

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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$ 1,322.00
$ 1,322.00 - $ 1,322.00
$ 1,322.00
$ 1,059.00
$ 1,059.00 - $ 1,059.00
$ 1,059.00
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 %
$ 1,427.00
$ 1,427.00 - $ 1,427.00
$ 1,427.00
$ 1,143.00
$ 1,143.00 - $ 1,143.00
$ 1,143.00

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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$ 1,427.00
$ 1,427.00 - $ 1,427.00
$ 1,427.00
$ 1,143.00
$ 1,143.00 - $ 1,143.00
$ 1,143.00
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 %
$ 1,401.00
$ 1,401.00 - $ 1,401.00
$ 1,401.00
$ 1,122.00
$ 1,122.00 - $ 1,122.00
$ 1,122.00

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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$ 1,401.00
$ 1,401.00 - $ 1,401.00
$ 1,401.00
$ 1,122.00
$ 1,122.00 - $ 1,122.00
$ 1,122.00
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 %
$ 1,372.00
$ 1,372.00 - $ 1,372.00
$ 1,372.00
$ 1,097.00
$ 1,097.00 - $ 1,097.00
$ 1,097.00

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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$ 1,372.00
$ 1,372.00 - $ 1,372.00
$ 1,372.00
$ 1,097.00
$ 1,097.00 - $ 1,097.00
$ 1,097.00
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 %
$ 1,322.00
$ 1,322.00 - $ 1,322.00
$ 1,322.00
$ 1,059.00
$ 1,059.00 - $ 1,059.00
$ 1,059.00

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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$ 1,322.00
$ 1,322.00 - $ 1,322.00
$ 1,322.00
$ 1,059.00
$ 1,059.00 - $ 1,059.00
$ 1,059.00
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 %
$ 470.00
$ 470.00 - $ 470.00
$ 470.00
$ 377.00
$ 377.00 - $ 377.00
$ 377.00

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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$ 470.00
$ 470.00 - $ 470.00
$ 470.00
$ 377.00
$ 377.00 - $ 377.00
$ 377.00
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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$ 516.00
$ 516.00 - $ 516.00
$ 516.00
$ 413.00
$ 413.00 - $ 413.00
$ 413.00

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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$ 516.00
$ 516.00 - $ 516.00
$ 516.00
$ 413.00
$ 413.00 - $ 413.00
$ 413.00
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 %
$ 631.00
$ 631.00 - $ 631.00
$ 631.00
$ 505.00
$ 505.00 - $ 505.00
$ 505.00

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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$ 631.00
$ 631.00 - $ 631.00
$ 631.00
$ 505.00
$ 505.00 - $ 505.00
$ 505.00
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 %
$ 633.00
$ 633.00 - $ 633.00
$ 633.00
$ 507.00
$ 507.00 - $ 507.00
$ 507.00

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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$ 633.00
$ 633.00 - $ 633.00
$ 633.00
$ 507.00
$ 507.00 - $ 507.00
$ 507.00
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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$ 602.00
$ 602.00 - $ 602.00
$ 602.00
$ 482.00
$ 482.00 - $ 482.00
$ 482.00

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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$ 602.00
$ 602.00 - $ 602.00
$ 602.00
$ 482.00
$ 482.00 - $ 482.00
$ 482.00
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 %
$ 539.00
$ 539.00 - $ 539.00
$ 539.00
$ 432.00
$ 432.00 - $ 432.00
$ 432.00

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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$ 539.00
$ 539.00 - $ 539.00
$ 539.00
$ 432.00
$ 432.00 - $ 432.00
$ 432.00
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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$ 531.00
$ 531.00 - $ 531.00
$ 531.00
$ 424.00
$ 424.00 - $ 424.00
$ 424.00

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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$ 531.00
$ 531.00 - $ 531.00
$ 531.00
$ 424.00
$ 424.00 - $ 424.00
$ 424.00
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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$ 1,393.00
$ 1,393.00 - $ 1,393.00
$ 1,393.00
$ 1,114.00
$ 1,114.00 - $ 1,114.00
$ 1,114.00

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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$ 1,393.00
$ 1,393.00 - $ 1,393.00
$ 1,393.00
$ 1,114.00
$ 1,114.00 - $ 1,114.00
$ 1,114.00
Save 20% Save %

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