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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 %
$ 396.00
$ 396.00 - $ 396.00
$ 396.00
$ 316.00
$ 316.00 - $ 316.00
$ 316.00

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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$ 396.00
$ 396.00 - $ 396.00
$ 396.00
$ 316.00
$ 316.00 - $ 316.00
$ 316.00
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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 %
$ 493.00
$ 493.00 - $ 493.00
$ 493.00
$ 394.00
$ 394.00 - $ 394.00
$ 394.00

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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$ 493.00
$ 493.00 - $ 493.00
$ 493.00
$ 394.00
$ 394.00 - $ 394.00
$ 394.00
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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 %
$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 398.00
$ 398.00 - $ 398.00
$ 398.00

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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$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 398.00
$ 398.00 - $ 398.00
$ 398.00
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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 %
$ 373.00
$ 373.00 - $ 373.00
$ 373.00
$ 299.00
$ 299.00 - $ 299.00
$ 299.00

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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$ 373.00
$ 373.00 - $ 373.00
$ 373.00
$ 299.00
$ 299.00 - $ 299.00
$ 299.00
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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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$ 7,107.00
$ 7,107.00 - $ 7,107.00
$ 7,107.00
$ 5,685.00
$ 5,685.00 - $ 5,685.00
$ 5,685.00

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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$ 7,107.00
$ 7,107.00 - $ 7,107.00
$ 7,107.00
$ 5,685.00
$ 5,685.00 - $ 5,685.00
$ 5,685.00
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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 %
$ 2,423.00
$ 2,423.00 - $ 2,423.00
$ 2,423.00
$ 1,939.00
$ 1,939.00 - $ 1,939.00
$ 1,939.00

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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$ 2,423.00
$ 2,423.00 - $ 2,423.00
$ 2,423.00
$ 1,939.00
$ 1,939.00 - $ 1,939.00
$ 1,939.00
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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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$ 2,157.00
$ 2,157.00 - $ 2,157.00
$ 2,157.00
$ 1,726.00
$ 1,726.00 - $ 1,726.00
$ 1,726.00

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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$ 2,157.00
$ 2,157.00 - $ 2,157.00
$ 2,157.00
$ 1,726.00
$ 1,726.00 - $ 1,726.00
$ 1,726.00
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 %
$ 3,333.00
$ 3,333.00 - $ 3,333.00
$ 3,333.00
$ 2,667.00
$ 2,667.00 - $ 2,667.00
$ 2,667.00

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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$ 3,333.00
$ 3,333.00 - $ 3,333.00
$ 3,333.00
$ 2,667.00
$ 2,667.00 - $ 2,667.00
$ 2,667.00
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 %
$ 1,788.00
$ 1,788.00 - $ 1,788.00
$ 1,788.00
$ 1,431.00
$ 1,431.00 - $ 1,431.00
$ 1,431.00

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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$ 1,788.00
$ 1,788.00 - $ 1,788.00
$ 1,788.00
$ 1,431.00
$ 1,431.00 - $ 1,431.00
$ 1,431.00
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 %
$ 4,825.00
$ 4,825.00 - $ 4,825.00
$ 4,825.00
$ 3,859.00
$ 3,859.00 - $ 3,859.00
$ 3,859.00

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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$ 4,825.00
$ 4,825.00 - $ 4,825.00
$ 4,825.00
$ 3,859.00
$ 3,859.00 - $ 3,859.00
$ 3,859.00
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 %
$ 1,766.00
$ 1,766.00 - $ 1,766.00
$ 1,766.00
$ 1,413.00
$ 1,413.00 - $ 1,413.00
$ 1,413.00

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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$ 1,766.00
$ 1,766.00 - $ 1,766.00
$ 1,766.00
$ 1,413.00
$ 1,413.00 - $ 1,413.00
$ 1,413.00
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 %
$ 2,296.00
$ 2,296.00 - $ 2,296.00
$ 2,296.00
$ 1,837.00
$ 1,837.00 - $ 1,837.00
$ 1,837.00

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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$ 2,296.00
$ 2,296.00 - $ 2,296.00
$ 2,296.00
$ 1,837.00
$ 1,837.00 - $ 1,837.00
$ 1,837.00
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 %
$ 1,252.00
$ 1,252.00 - $ 1,252.00
$ 1,252.00
$ 1,003.00
$ 1,003.00 - $ 1,003.00
$ 1,003.00

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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$ 1,252.00
$ 1,252.00 - $ 1,252.00
$ 1,252.00
$ 1,003.00
$ 1,003.00 - $ 1,003.00
$ 1,003.00
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 %
$ 2,988.00
$ 2,988.00 - $ 2,988.00
$ 2,988.00
$ 2,391.00
$ 2,391.00 - $ 2,391.00
$ 2,391.00

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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$ 2,988.00
$ 2,988.00 - $ 2,988.00
$ 2,988.00
$ 2,391.00
$ 2,391.00 - $ 2,391.00
$ 2,391.00
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 %
$ 1,042.00
$ 1,042.00 - $ 1,042.00
$ 1,042.00
$ 834.00
$ 834.00 - $ 834.00
$ 834.00

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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$ 1,042.00
$ 1,042.00 - $ 1,042.00
$ 1,042.00
$ 834.00
$ 834.00 - $ 834.00
$ 834.00
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 %
$ 1,339.00
$ 1,339.00 - $ 1,339.00
$ 1,339.00
$ 1,071.00
$ 1,071.00 - $ 1,071.00
$ 1,071.00

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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$ 1,339.00
$ 1,339.00 - $ 1,339.00
$ 1,339.00
$ 1,071.00
$ 1,071.00 - $ 1,071.00
$ 1,071.00
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 %
$ 926.00
$ 926.00 - $ 926.00
$ 926.00
$ 740.00
$ 740.00 - $ 740.00
$ 740.00

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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$ 926.00
$ 926.00 - $ 926.00
$ 926.00
$ 740.00
$ 740.00 - $ 740.00
$ 740.00
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 %
$ 1,777.00
$ 1,777.00 - $ 1,777.00
$ 1,777.00
$ 1,422.00
$ 1,422.00 - $ 1,422.00
$ 1,422.00

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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$ 1,777.00
$ 1,777.00 - $ 1,777.00
$ 1,777.00
$ 1,422.00
$ 1,422.00 - $ 1,422.00
$ 1,422.00
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 %
$ 841.00
$ 841.00 - $ 841.00
$ 841.00
$ 673.00
$ 673.00 - $ 673.00
$ 673.00

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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$ 841.00
$ 841.00 - $ 841.00
$ 841.00
$ 673.00
$ 673.00 - $ 673.00
$ 673.00
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 %
$ 867.00
$ 867.00 - $ 867.00
$ 867.00
$ 694.00
$ 694.00 - $ 694.00
$ 694.00

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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$ 867.00
$ 867.00 - $ 867.00
$ 867.00
$ 694.00
$ 694.00 - $ 694.00
$ 694.00
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
$ 452.00
$ 452.00 - $ 452.00
$ 452.00

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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$ 564.00
$ 564.00 - $ 564.00
$ 564.00
$ 452.00
$ 452.00 - $ 452.00
$ 452.00
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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$ 638.00
$ 638.00 - $ 638.00
$ 638.00
$ 511.00
$ 511.00 - $ 511.00
$ 511.00

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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$ 638.00
$ 638.00 - $ 638.00
$ 638.00
$ 511.00
$ 511.00 - $ 511.00
$ 511.00
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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$ 1,360.00
$ 1,360.00 - $ 1,360.00
$ 1,360.00
$ 1,088.00
$ 1,088.00 - $ 1,088.00
$ 1,088.00

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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$ 1,360.00
$ 1,360.00 - $ 1,360.00
$ 1,360.00
$ 1,088.00
$ 1,088.00 - $ 1,088.00
$ 1,088.00
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 %
$ 652.00
$ 652.00 - $ 652.00
$ 652.00
$ 521.00
$ 521.00 - $ 521.00
$ 521.00

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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$ 652.00
$ 652.00 - $ 652.00
$ 652.00
$ 521.00
$ 521.00 - $ 521.00
$ 521.00
Save 20% Save %

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