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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 %
$ 386.00
$ 386.00 - $ 386.00
$ 386.00
$ 309.00
$ 309.00 - $ 309.00
$ 309.00

Foster H1BLV, 1/8" ISO-B Hydraulic Coupler 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 H1BLV is a brass 1/8" coupler in the FHK ...

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$ 386.00
$ 386.00 - $ 386.00
$ 386.00
$ 309.00
$ 309.00 - $ 309.00
$ 309.00
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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 %
$ 481.00
$ 481.00 - $ 481.00
$ 481.00
$ 384.00
$ 384.00 - $ 384.00
$ 384.00

Foster H1B-103, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 H1B-103 is a brass 1/8" coupler in the FH...

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$ 481.00
$ 481.00 - $ 481.00
$ 481.00
$ 384.00
$ 384.00 - $ 384.00
$ 384.00
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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 %
$ 484.00
$ 484.00 - $ 484.00
$ 484.00
$ 388.00
$ 388.00 - $ 388.00
$ 388.00

Foster H1B-101, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 H1B-101 is a brass 1/8" coupler in the FH...

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$ 484.00
$ 484.00 - $ 484.00
$ 484.00
$ 388.00
$ 388.00 - $ 388.00
$ 388.00
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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 %
$ 364.00
$ 364.00 - $ 364.00
$ 364.00
$ 291.00
$ 291.00 - $ 291.00
$ 291.00

Foster H1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1B is a brass 1/8" coupler in the FHK Se...

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$ 364.00
$ 364.00 - $ 364.00
$ 364.00
$ 291.00
$ 291.00 - $ 291.00
$ 291.00
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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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$ 6,930.00
$ 6,930.00 - $ 6,930.00
$ 6,930.00
$ 5,544.00
$ 5,544.00 - $ 5,544.00
$ 5,544.00

Foster BLH8S/S, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH8S/S is a 303 stainless 1" coupler in ...

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$ 6,930.00
$ 6,930.00 - $ 6,930.00
$ 6,930.00
$ 5,544.00
$ 5,544.00 - $ 5,544.00
$ 5,544.00
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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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$ 2,363.00
$ 2,363.00 - $ 2,363.00
$ 2,363.00
$ 1,891.00
$ 1,891.00 - $ 1,891.00
$ 1,891.00

Foster BLH8S16, 1" ISO-B Hydraulic Coupler x 15/16"-12 SAE, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH8S16 is a steel 1" coupler in the FHK ...

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$ 2,363.00
$ 2,363.00 - $ 2,363.00
$ 2,363.00
$ 1,891.00
$ 1,891.00 - $ 1,891.00
$ 1,891.00
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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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$ 2,103.00
$ 2,103.00 - $ 2,103.00
$ 2,103.00
$ 1,683.00
$ 1,683.00 - $ 1,683.00
$ 1,683.00

Foster BLH8S, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH8S is a steel 1" coupler in the FHK Se...

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$ 2,103.00
$ 2,103.00 - $ 2,103.00
$ 2,103.00
$ 1,683.00
$ 1,683.00 - $ 1,683.00
$ 1,683.00
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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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$ 3,250.00
$ 3,250.00 - $ 3,250.00
$ 3,250.00
$ 2,601.00
$ 2,601.00 - $ 2,601.00
$ 2,601.00

Foster BLH8B, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Ball Lock, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH8B is a brass 1" coupler in the FHK Se...

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$ 3,250.00
$ 3,250.00 - $ 3,250.00
$ 3,250.00
$ 2,601.00
$ 2,601.00 - $ 2,601.00
$ 2,601.00
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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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$ 1,743.00
$ 1,743.00 - $ 1,743.00
$ 1,743.00
$ 1,395.00
$ 1,395.00 - $ 1,395.00
$ 1,395.00

Foster BLH6S12, 3/4" ISO-B Hydraulic Coupler x 1-1/16"-12 SAE, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH6S12 is a steel 3/4" coupler in the FH...

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$ 1,743.00
$ 1,743.00 - $ 1,743.00
$ 1,743.00
$ 1,395.00
$ 1,395.00 - $ 1,395.00
$ 1,395.00
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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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$ 4,705.00
$ 4,705.00 - $ 4,705.00
$ 4,705.00
$ 3,763.00
$ 3,763.00 - $ 3,763.00
$ 3,763.00

Foster BLH6S/S, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH6S/S is a 303 stainless 3/4" coupler i...

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$ 4,705.00
$ 4,705.00 - $ 4,705.00
$ 4,705.00
$ 3,763.00
$ 3,763.00 - $ 3,763.00
$ 3,763.00
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 %
$ 1,722.00
$ 1,722.00 - $ 1,722.00
$ 1,722.00
$ 1,378.00
$ 1,378.00 - $ 1,378.00
$ 1,378.00

Foster BLH6S, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH6S is a steel 3/4" coupler in the FHK ...

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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
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 %
$ 2,239.00
$ 2,239.00 - $ 2,239.00
$ 2,239.00
$ 1,791.00
$ 1,791.00 - $ 1,791.00
$ 1,791.00

Foster BLH6B, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Ball Lock, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH6B is a brass 3/4" coupler in the FHK ...

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$ 2,239.00
$ 2,239.00 - $ 2,239.00
$ 2,239.00
$ 1,791.00
$ 1,791.00 - $ 1,791.00
$ 1,791.00
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 %
$ 1,221.00
$ 1,221.00 - $ 1,221.00
$ 1,221.00
$ 978.00
$ 978.00 - $ 978.00
$ 978.00

Foster BLH4S10, 1/2" ISO-B Hydraulic Coupler x 7/8"-14 SAE, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH4S10 is a steel 1/2" coupler in the FH...

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$ 1,221.00
$ 1,221.00 - $ 1,221.00
$ 1,221.00
$ 978.00
$ 978.00 - $ 978.00
$ 978.00
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 %
$ 2,914.00
$ 2,914.00 - $ 2,914.00
$ 2,914.00
$ 2,332.00
$ 2,332.00 - $ 2,332.00
$ 2,332.00

Foster BLH4S/S, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH4S/S is a 303 stainless 1/2" coupler i...

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$ 2,914.00
$ 2,914.00 - $ 2,914.00
$ 2,914.00
$ 2,332.00
$ 2,332.00 - $ 2,332.00
$ 2,332.00
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 %
$ 1,016.00
$ 1,016.00 - $ 1,016.00
$ 1,016.00
$ 813.00
$ 813.00 - $ 813.00
$ 813.00

Foster BLH4S, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH4S is a steel 1/2" coupler in the FHK ...

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$ 1,016.00
$ 1,016.00 - $ 1,016.00
$ 1,016.00
$ 813.00
$ 813.00 - $ 813.00
$ 813.00
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 %
$ 1,306.00
$ 1,306.00 - $ 1,306.00
$ 1,306.00
$ 1,044.00
$ 1,044.00 - $ 1,044.00
$ 1,044.00

Foster BLH4B, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Ball Lock, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH4B is a brass 1/2" coupler in the FHK ...

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$ 1,306.00
$ 1,306.00 - $ 1,306.00
$ 1,306.00
$ 1,044.00
$ 1,044.00 - $ 1,044.00
$ 1,044.00
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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$ 903.00
$ 903.00 - $ 903.00
$ 903.00
$ 722.00
$ 722.00 - $ 722.00
$ 722.00

Foster BLH3S8, 3/8" ISO-B Hydraulic Coupler x 3/4"-16 SAE, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH3S8 is a steel 3/8" coupler in the FHK...

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$ 903.00
$ 903.00 - $ 903.00
$ 903.00
$ 722.00
$ 722.00 - $ 722.00
$ 722.00
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 %
$ 1,733.00
$ 1,733.00 - $ 1,733.00
$ 1,733.00
$ 1,387.00
$ 1,387.00 - $ 1,387.00
$ 1,387.00

Foster BLH3S/S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH3S/S is a 303 stainless 3/8" coupler i...

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$ 1,733.00
$ 1,733.00 - $ 1,733.00
$ 1,733.00
$ 1,387.00
$ 1,387.00 - $ 1,387.00
$ 1,387.00
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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$ 820.00
$ 820.00 - $ 820.00
$ 820.00
$ 656.00
$ 656.00 - $ 656.00
$ 656.00

Foster BLH3S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH3S is a steel 3/8" coupler in the FHK ...

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$ 820.00
$ 820.00 - $ 820.00
$ 820.00
$ 656.00
$ 656.00 - $ 656.00
$ 656.00
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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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$ 846.00
$ 846.00 - $ 846.00
$ 846.00
$ 677.00
$ 677.00 - $ 677.00
$ 677.00

Foster BLH3B, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Ball Lock, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH3B is a brass 3/8" coupler in the FHK ...

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$ 846.00
$ 846.00 - $ 846.00
$ 846.00
$ 677.00
$ 677.00 - $ 677.00
$ 677.00
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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$ 550.00
$ 550.00 - $ 550.00
$ 550.00
$ 441.00
$ 441.00 - $ 441.00
$ 441.00

Foster BLH2S, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH2S is a steel 1/4" coupler in the FHK ...

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$ 550.00
$ 550.00 - $ 550.00
$ 550.00
$ 441.00
$ 441.00 - $ 441.00
$ 441.00
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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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$ 622.00
$ 622.00 - $ 622.00
$ 622.00
$ 498.00
$ 498.00 - $ 498.00
$ 498.00

Foster BLH2S6, 1/4" ISO-B Hydraulic Coupler x 9/16"-18 SAE, ISO-B Series, Ball Lock, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH2S6 is a steel 1/4" coupler in the FHK...

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$ 622.00
$ 622.00 - $ 622.00
$ 622.00
$ 498.00
$ 498.00 - $ 498.00
$ 498.00
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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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$ 1,326.00
$ 1,326.00 - $ 1,326.00
$ 1,326.00
$ 1,061.00
$ 1,061.00 - $ 1,061.00
$ 1,061.00

Foster BLH2S/S, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH2S/S is a 303 stainless 1/4" coupler i...

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$ 1,326.00
$ 1,326.00 - $ 1,326.00
$ 1,326.00
$ 1,061.00
$ 1,061.00 - $ 1,061.00
$ 1,061.00
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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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$ 636.00
$ 636.00 - $ 636.00
$ 636.00
$ 508.00
$ 508.00 - $ 508.00
$ 508.00

Foster BLH2B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Ball Lock, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster BLH2B is a brass 1/4" coupler in the FHK ...

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$ 636.00
$ 636.00 - $ 636.00
$ 636.00
$ 508.00
$ 508.00 - $ 508.00
$ 508.00
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