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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 %
$ 1,388.00
$ 1,388.00 - $ 1,388.00
$ 1,388.00
$ 1,110.00
$ 1,110.00 - $ 1,110.00
$ 1,110.00

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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$ 1,388.00
$ 1,388.00 - $ 1,388.00
$ 1,388.00
$ 1,110.00
$ 1,110.00 - $ 1,110.00
$ 1,110.00
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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 %
$ 1,281.00
$ 1,281.00 - $ 1,281.00
$ 1,281.00
$ 1,024.00
$ 1,024.00 - $ 1,024.00
$ 1,024.00

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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$ 1,281.00
$ 1,281.00 - $ 1,281.00
$ 1,281.00
$ 1,024.00
$ 1,024.00 - $ 1,024.00
$ 1,024.00
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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 %
$ 435.00
$ 435.00 - $ 435.00
$ 435.00
$ 349.00
$ 349.00 - $ 349.00
$ 349.00

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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$ 435.00
$ 435.00 - $ 435.00
$ 435.00
$ 349.00
$ 349.00 - $ 349.00
$ 349.00
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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 %
$ 429.00
$ 429.00 - $ 429.00
$ 429.00
$ 343.00
$ 343.00 - $ 343.00
$ 343.00

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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$ 429.00
$ 429.00 - $ 429.00
$ 429.00
$ 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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$ 534.00
$ 534.00 - $ 534.00
$ 534.00
$ 427.00
$ 427.00 - $ 427.00
$ 427.00

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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$ 534.00
$ 534.00 - $ 534.00
$ 534.00
$ 427.00
$ 427.00 - $ 427.00
$ 427.00
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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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$ 538.00
$ 538.00 - $ 538.00
$ 538.00
$ 431.00
$ 431.00 - $ 431.00
$ 431.00

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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$ 538.00
$ 538.00 - $ 538.00
$ 538.00
$ 431.00
$ 431.00 - $ 431.00
$ 431.00
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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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$ 404.00
$ 404.00 - $ 404.00
$ 404.00
$ 324.00
$ 324.00 - $ 324.00
$ 324.00

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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$ 404.00
$ 404.00 - $ 404.00
$ 404.00
$ 324.00
$ 324.00 - $ 324.00
$ 324.00
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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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$ 7,702.00
$ 7,702.00 - $ 7,702.00
$ 7,702.00
$ 6,161.00
$ 6,161.00 - $ 6,161.00
$ 6,161.00

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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$ 7,702.00
$ 7,702.00 - $ 7,702.00
$ 7,702.00
$ 6,161.00
$ 6,161.00 - $ 6,161.00
$ 6,161.00
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 %
$ 2,626.00
$ 2,626.00 - $ 2,626.00
$ 2,626.00
$ 2,102.00
$ 2,102.00 - $ 2,102.00
$ 2,102.00

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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$ 2,626.00
$ 2,626.00 - $ 2,626.00
$ 2,626.00
$ 2,102.00
$ 2,102.00 - $ 2,102.00
$ 2,102.00
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 %
$ 2,337.00
$ 2,337.00 - $ 2,337.00
$ 2,337.00
$ 1,870.00
$ 1,870.00 - $ 1,870.00
$ 1,870.00

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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$ 2,337.00
$ 2,337.00 - $ 2,337.00
$ 2,337.00
$ 1,870.00
$ 1,870.00 - $ 1,870.00
$ 1,870.00
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 %
$ 3,612.00
$ 3,612.00 - $ 3,612.00
$ 3,612.00
$ 2,890.00
$ 2,890.00 - $ 2,890.00
$ 2,890.00

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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$ 3,612.00
$ 3,612.00 - $ 3,612.00
$ 3,612.00
$ 2,890.00
$ 2,890.00 - $ 2,890.00
$ 2,890.00
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 %
$ 1,937.00
$ 1,937.00 - $ 1,937.00
$ 1,937.00
$ 1,551.00
$ 1,551.00 - $ 1,551.00
$ 1,551.00

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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$ 1,937.00
$ 1,937.00 - $ 1,937.00
$ 1,937.00
$ 1,551.00
$ 1,551.00 - $ 1,551.00
$ 1,551.00
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 %
$ 5,229.00
$ 5,229.00 - $ 5,229.00
$ 5,229.00
$ 4,182.00
$ 4,182.00 - $ 4,182.00
$ 4,182.00

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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$ 5,229.00
$ 5,229.00 - $ 5,229.00
$ 5,229.00
$ 4,182.00
$ 4,182.00 - $ 4,182.00
$ 4,182.00
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 %
$ 1,914.00
$ 1,914.00 - $ 1,914.00
$ 1,914.00
$ 1,532.00
$ 1,532.00 - $ 1,532.00
$ 1,532.00

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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$ 1,914.00
$ 1,914.00 - $ 1,914.00
$ 1,914.00
$ 1,532.00
$ 1,532.00 - $ 1,532.00
$ 1,532.00
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 %
$ 2,489.00
$ 2,489.00 - $ 2,489.00
$ 2,489.00
$ 1,991.00
$ 1,991.00 - $ 1,991.00
$ 1,991.00

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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$ 2,489.00
$ 2,489.00 - $ 2,489.00
$ 2,489.00
$ 1,991.00
$ 1,991.00 - $ 1,991.00
$ 1,991.00
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 %
$ 1,357.00
$ 1,357.00 - $ 1,357.00
$ 1,357.00
$ 1,087.00
$ 1,087.00 - $ 1,087.00
$ 1,087.00

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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$ 1,357.00
$ 1,357.00 - $ 1,357.00
$ 1,357.00
$ 1,087.00
$ 1,087.00 - $ 1,087.00
$ 1,087.00
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 %
$ 3,239.00
$ 3,239.00 - $ 3,239.00
$ 3,239.00
$ 2,592.00
$ 2,592.00 - $ 2,592.00
$ 2,592.00

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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$ 3,239.00
$ 3,239.00 - $ 3,239.00
$ 3,239.00
$ 2,592.00
$ 2,592.00 - $ 2,592.00
$ 2,592.00
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 %
$ 1,130.00
$ 1,130.00 - $ 1,130.00
$ 1,130.00
$ 904.00
$ 904.00 - $ 904.00
$ 904.00

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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$ 1,130.00
$ 1,130.00 - $ 1,130.00
$ 1,130.00
$ 904.00
$ 904.00 - $ 904.00
$ 904.00
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 %
$ 1,451.00
$ 1,451.00 - $ 1,451.00
$ 1,451.00
$ 1,160.00
$ 1,160.00 - $ 1,160.00
$ 1,160.00

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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$ 1,451.00
$ 1,451.00 - $ 1,451.00
$ 1,451.00
$ 1,160.00
$ 1,160.00 - $ 1,160.00
$ 1,160.00
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 %
$ 1,003.00
$ 1,003.00 - $ 1,003.00
$ 1,003.00
$ 802.00
$ 802.00 - $ 802.00
$ 802.00

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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$ 1,003.00
$ 1,003.00 - $ 1,003.00
$ 1,003.00
$ 802.00
$ 802.00 - $ 802.00
$ 802.00
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 %
$ 1,926.00
$ 1,926.00 - $ 1,926.00
$ 1,926.00
$ 1,541.00
$ 1,541.00 - $ 1,541.00
$ 1,541.00

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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$ 1,926.00
$ 1,926.00 - $ 1,926.00
$ 1,926.00
$ 1,541.00
$ 1,541.00 - $ 1,541.00
$ 1,541.00
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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$ 911.00
$ 911.00 - $ 911.00
$ 911.00
$ 730.00
$ 730.00 - $ 730.00
$ 730.00

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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$ 911.00
$ 911.00 - $ 911.00
$ 911.00
$ 730.00
$ 730.00 - $ 730.00
$ 730.00
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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$ 940.00
$ 940.00 - $ 940.00
$ 940.00
$ 753.00
$ 753.00 - $ 753.00
$ 753.00

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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$ 940.00
$ 940.00 - $ 940.00
$ 940.00
$ 753.00
$ 753.00 - $ 753.00
$ 753.00
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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$ 611.00
$ 611.00 - $ 611.00
$ 611.00
$ 490.00
$ 490.00 - $ 490.00
$ 490.00

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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$ 611.00
$ 611.00 - $ 611.00
$ 611.00
$ 490.00
$ 490.00 - $ 490.00
$ 490.00
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