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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 %
$ 750.00
$ 750.00 - $ 750.00
$ 750.00
$ 600.00
$ 600.00 - $ 600.00
$ 600.00

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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$ 750.00
$ 750.00 - $ 750.00
$ 750.00
$ 600.00
$ 600.00 - $ 600.00
$ 600.00
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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 %
$ 783.00
$ 783.00 - $ 783.00
$ 783.00
$ 628.00
$ 628.00 - $ 628.00
$ 628.00

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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$ 783.00
$ 783.00 - $ 783.00
$ 783.00
$ 628.00
$ 628.00 - $ 628.00
$ 628.00
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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 %
$ 771.00
$ 771.00 - $ 771.00
$ 771.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00

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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$ 771.00
$ 771.00 - $ 771.00
$ 771.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00
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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 %
$ 652.00
$ 652.00 - $ 652.00
$ 652.00
$ 523.00
$ 523.00 - $ 523.00
$ 523.00

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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$ 652.00
$ 652.00 - $ 652.00
$ 652.00
$ 523.00
$ 523.00 - $ 523.00
$ 523.00
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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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$ 505.00
$ 505.00 - $ 505.00
$ 505.00
$ 404.00
$ 404.00 - $ 404.00
$ 404.00

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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$ 505.00
$ 505.00 - $ 505.00
$ 505.00
$ 404.00
$ 404.00 - $ 404.00
$ 404.00
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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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$ 509.00
$ 509.00 - $ 509.00
$ 509.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00

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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$ 509.00
$ 509.00 - $ 509.00
$ 509.00
$ 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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$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 397.00
$ 397.00 - $ 397.00
$ 397.00

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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$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 397.00
$ 397.00 - $ 397.00
$ 397.00
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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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$ 493.00
$ 493.00 - $ 493.00
$ 493.00
$ 395.00
$ 395.00 - $ 395.00
$ 395.00

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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$ 493.00
$ 493.00 - $ 493.00
$ 493.00
$ 395.00
$ 395.00 - $ 395.00
$ 395.00
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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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$ 1,193.00
$ 1,193.00 - $ 1,193.00
$ 1,193.00
$ 956.00
$ 956.00 - $ 956.00
$ 956.00

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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$ 1,193.00
$ 1,193.00 - $ 1,193.00
$ 1,193.00
$ 956.00
$ 956.00 - $ 956.00
$ 956.00
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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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$ 1,288.00
$ 1,288.00 - $ 1,288.00
$ 1,288.00
$ 1,031.00
$ 1,031.00 - $ 1,031.00
$ 1,031.00

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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$ 1,288.00
$ 1,288.00 - $ 1,288.00
$ 1,288.00
$ 1,031.00
$ 1,031.00 - $ 1,031.00
$ 1,031.00
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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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$ 1,264.00
$ 1,264.00 - $ 1,264.00
$ 1,264.00
$ 1,012.00
$ 1,012.00 - $ 1,012.00
$ 1,012.00

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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$ 1,264.00
$ 1,264.00 - $ 1,264.00
$ 1,264.00
$ 1,012.00
$ 1,012.00 - $ 1,012.00
$ 1,012.00
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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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$ 1,238.00
$ 1,238.00 - $ 1,238.00
$ 1,238.00
$ 990.00
$ 990.00 - $ 990.00
$ 990.00

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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$ 1,238.00
$ 1,238.00 - $ 1,238.00
$ 1,238.00
$ 990.00
$ 990.00 - $ 990.00
$ 990.00
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 %
$ 1,193.00
$ 1,193.00 - $ 1,193.00
$ 1,193.00
$ 956.00
$ 956.00 - $ 956.00
$ 956.00

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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$ 1,193.00
$ 1,193.00 - $ 1,193.00
$ 1,193.00
$ 956.00
$ 956.00 - $ 956.00
$ 956.00
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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$ 424.00
$ 424.00 - $ 424.00
$ 424.00
$ 340.00
$ 340.00 - $ 340.00
$ 340.00

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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$ 424.00
$ 424.00 - $ 424.00
$ 424.00
$ 340.00
$ 340.00 - $ 340.00
$ 340.00
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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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$ 466.00
$ 466.00 - $ 466.00
$ 466.00
$ 373.00
$ 373.00 - $ 373.00
$ 373.00

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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$ 466.00
$ 466.00 - $ 466.00
$ 466.00
$ 373.00
$ 373.00 - $ 373.00
$ 373.00
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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$ 569.00
$ 569.00 - $ 569.00
$ 569.00
$ 455.00
$ 455.00 - $ 455.00
$ 455.00

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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$ 569.00
$ 569.00 - $ 569.00
$ 569.00
$ 455.00
$ 455.00 - $ 455.00
$ 455.00
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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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$ 571.00
$ 571.00 - $ 571.00
$ 571.00
$ 457.00
$ 457.00 - $ 457.00
$ 457.00

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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$ 571.00
$ 571.00 - $ 571.00
$ 571.00
$ 457.00
$ 457.00 - $ 457.00
$ 457.00
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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$ 543.00
$ 543.00 - $ 543.00
$ 543.00
$ 435.00
$ 435.00 - $ 435.00
$ 435.00

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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$ 543.00
$ 543.00 - $ 543.00
$ 543.00
$ 435.00
$ 435.00 - $ 435.00
$ 435.00
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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$ 487.00
$ 487.00 - $ 487.00
$ 487.00
$ 390.00
$ 390.00 - $ 390.00
$ 390.00

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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$ 487.00
$ 487.00 - $ 487.00
$ 487.00
$ 390.00
$ 390.00 - $ 390.00
$ 390.00
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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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$ 480.00
$ 480.00 - $ 480.00
$ 480.00
$ 383.00
$ 383.00 - $ 383.00
$ 383.00

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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$ 480.00
$ 480.00 - $ 480.00
$ 480.00
$ 383.00
$ 383.00 - $ 383.00
$ 383.00
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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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$ 1,257.00
$ 1,257.00 - $ 1,257.00
$ 1,257.00
$ 1,006.00
$ 1,006.00 - $ 1,006.00
$ 1,006.00

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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$ 1,257.00
$ 1,257.00 - $ 1,257.00
$ 1,257.00
$ 1,006.00
$ 1,006.00 - $ 1,006.00
$ 1,006.00
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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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$ 1,250.00
$ 1,250.00 - $ 1,250.00
$ 1,250.00
$ 1,000.00
$ 1,000.00 - $ 1,000.00
$ 1,000.00

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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$ 1,250.00
$ 1,250.00 - $ 1,250.00
$ 1,250.00
$ 1,000.00
$ 1,000.00 - $ 1,000.00
$ 1,000.00
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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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$ 1,154.00
$ 1,154.00 - $ 1,154.00
$ 1,154.00
$ 923.00
$ 923.00 - $ 923.00
$ 923.00

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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$ 1,154.00
$ 1,154.00 - $ 1,154.00
$ 1,154.00
$ 923.00
$ 923.00 - $ 923.00
$ 923.00
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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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$ 392.00
$ 392.00 - $ 392.00
$ 392.00
$ 314.00
$ 314.00 - $ 314.00
$ 314.00

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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$ 392.00
$ 392.00 - $ 392.00
$ 392.00
$ 314.00
$ 314.00 - $ 314.00
$ 314.00
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