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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 %
$ 1,384.00
$ 1,384.00 - $ 1,384.00
$ 1,384.00
$ 1,107.00
$ 1,107.00 - $ 1,107.00
$ 1,107.00

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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$ 1,384.00
$ 1,384.00 - $ 1,384.00
$ 1,384.00
$ 1,107.00
$ 1,107.00 - $ 1,107.00
$ 1,107.00
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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 %
$ 1,277.00
$ 1,277.00 - $ 1,277.00
$ 1,277.00
$ 1,021.00
$ 1,021.00 - $ 1,021.00
$ 1,021.00

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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$ 1,277.00
$ 1,277.00 - $ 1,277.00
$ 1,277.00
$ 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 Save 20% Save %
$ 433.00
$ 433.00 - $ 433.00
$ 433.00
$ 348.00
$ 348.00 - $ 348.00
$ 348.00

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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$ 433.00
$ 433.00 - $ 433.00
$ 433.00
$ 348.00
$ 348.00 - $ 348.00
$ 348.00
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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 %
$ 428.00
$ 428.00 - $ 428.00
$ 428.00
$ 342.00
$ 342.00 - $ 342.00
$ 342.00

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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$ 428.00
$ 428.00 - $ 428.00
$ 428.00
$ 342.00
$ 342.00 - $ 342.00
$ 342.00
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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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$ 533.00
$ 533.00 - $ 533.00
$ 533.00
$ 426.00
$ 426.00 - $ 426.00
$ 426.00

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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$ 533.00
$ 533.00 - $ 533.00
$ 533.00
$ 426.00
$ 426.00 - $ 426.00
$ 426.00
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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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$ 537.00
$ 537.00 - $ 537.00
$ 537.00
$ 430.00
$ 430.00 - $ 430.00
$ 430.00

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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$ 537.00
$ 537.00 - $ 537.00
$ 537.00
$ 430.00
$ 430.00 - $ 430.00
$ 430.00
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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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$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 323.00
$ 323.00 - $ 323.00
$ 323.00

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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$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 323.00
$ 323.00 - $ 323.00
$ 323.00
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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 %
$ 7,679.00
$ 7,679.00 - $ 7,679.00
$ 7,679.00
$ 6,143.00
$ 6,143.00 - $ 6,143.00
$ 6,143.00

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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$ 7,679.00
$ 7,679.00 - $ 7,679.00
$ 7,679.00
$ 6,143.00
$ 6,143.00 - $ 6,143.00
$ 6,143.00
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 %
$ 2,618.00
$ 2,618.00 - $ 2,618.00
$ 2,618.00
$ 2,095.00
$ 2,095.00 - $ 2,095.00
$ 2,095.00

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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$ 2,618.00
$ 2,618.00 - $ 2,618.00
$ 2,618.00
$ 2,095.00
$ 2,095.00 - $ 2,095.00
$ 2,095.00
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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$ 2,330.00
$ 2,330.00 - $ 2,330.00
$ 2,330.00
$ 1,865.00
$ 1,865.00 - $ 1,865.00
$ 1,865.00

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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$ 2,330.00
$ 2,330.00 - $ 2,330.00
$ 2,330.00
$ 1,865.00
$ 1,865.00 - $ 1,865.00
$ 1,865.00
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 %
$ 3,601.00
$ 3,601.00 - $ 3,601.00
$ 3,601.00
$ 2,882.00
$ 2,882.00 - $ 2,882.00
$ 2,882.00

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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$ 3,601.00
$ 3,601.00 - $ 3,601.00
$ 3,601.00
$ 2,882.00
$ 2,882.00 - $ 2,882.00
$ 2,882.00
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 %
$ 1,931.00
$ 1,931.00 - $ 1,931.00
$ 1,931.00
$ 1,546.00
$ 1,546.00 - $ 1,546.00
$ 1,546.00

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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$ 1,931.00
$ 1,931.00 - $ 1,931.00
$ 1,931.00
$ 1,546.00
$ 1,546.00 - $ 1,546.00
$ 1,546.00
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 %
$ 5,213.00
$ 5,213.00 - $ 5,213.00
$ 5,213.00
$ 4,170.00
$ 4,170.00 - $ 4,170.00
$ 4,170.00

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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$ 5,213.00
$ 5,213.00 - $ 5,213.00
$ 5,213.00
$ 4,170.00
$ 4,170.00 - $ 4,170.00
$ 4,170.00
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 %
$ 1,908.00
$ 1,908.00 - $ 1,908.00
$ 1,908.00
$ 1,527.00
$ 1,527.00 - $ 1,527.00
$ 1,527.00

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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$ 1,908.00
$ 1,908.00 - $ 1,908.00
$ 1,908.00
$ 1,527.00
$ 1,527.00 - $ 1,527.00
$ 1,527.00
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 %
$ 2,481.00
$ 2,481.00 - $ 2,481.00
$ 2,481.00
$ 1,985.00
$ 1,985.00 - $ 1,985.00
$ 1,985.00

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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$ 2,481.00
$ 2,481.00 - $ 2,481.00
$ 2,481.00
$ 1,985.00
$ 1,985.00 - $ 1,985.00
$ 1,985.00
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 %
$ 1,353.00
$ 1,353.00 - $ 1,353.00
$ 1,353.00
$ 1,084.00
$ 1,084.00 - $ 1,084.00
$ 1,084.00

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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$ 1,353.00
$ 1,353.00 - $ 1,353.00
$ 1,353.00
$ 1,084.00
$ 1,084.00 - $ 1,084.00
$ 1,084.00
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 %
$ 3,229.00
$ 3,229.00 - $ 3,229.00
$ 3,229.00
$ 2,584.00
$ 2,584.00 - $ 2,584.00
$ 2,584.00

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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$ 3,229.00
$ 3,229.00 - $ 3,229.00
$ 3,229.00
$ 2,584.00
$ 2,584.00 - $ 2,584.00
$ 2,584.00
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 %
$ 1,126.00
$ 1,126.00 - $ 1,126.00
$ 1,126.00
$ 901.00
$ 901.00 - $ 901.00
$ 901.00

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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$ 1,126.00
$ 1,126.00 - $ 1,126.00
$ 1,126.00
$ 901.00
$ 901.00 - $ 901.00
$ 901.00
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 %
$ 1,447.00
$ 1,447.00 - $ 1,447.00
$ 1,447.00
$ 1,157.00
$ 1,157.00 - $ 1,157.00
$ 1,157.00

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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$ 1,447.00
$ 1,447.00 - $ 1,447.00
$ 1,447.00
$ 1,157.00
$ 1,157.00 - $ 1,157.00
$ 1,157.00
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 %
$ 1,000.00
$ 1,000.00 - $ 1,000.00
$ 1,000.00
$ 800.00
$ 800.00 - $ 800.00
$ 800.00

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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$ 1,000.00
$ 1,000.00 - $ 1,000.00
$ 1,000.00
$ 800.00
$ 800.00 - $ 800.00
$ 800.00
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 %
$ 1,920.00
$ 1,920.00 - $ 1,920.00
$ 1,920.00
$ 1,536.00
$ 1,536.00 - $ 1,536.00
$ 1,536.00

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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$ 1,920.00
$ 1,920.00 - $ 1,920.00
$ 1,920.00
$ 1,536.00
$ 1,536.00 - $ 1,536.00
$ 1,536.00
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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$ 909.00
$ 909.00 - $ 909.00
$ 909.00
$ 727.00
$ 727.00 - $ 727.00
$ 727.00

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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$ 909.00
$ 909.00 - $ 909.00
$ 909.00
$ 727.00
$ 727.00 - $ 727.00
$ 727.00
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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$ 937.00
$ 937.00 - $ 937.00
$ 937.00
$ 750.00
$ 750.00 - $ 750.00
$ 750.00

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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$ 937.00
$ 937.00 - $ 937.00
$ 937.00
$ 750.00
$ 750.00 - $ 750.00
$ 750.00
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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$ 609.00
$ 609.00 - $ 609.00
$ 609.00
$ 489.00
$ 489.00 - $ 489.00
$ 489.00

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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$ 609.00
$ 609.00 - $ 609.00
$ 609.00
$ 489.00
$ 489.00 - $ 489.00
$ 489.00
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