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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 %
$ 22.39
$ 22.39 - $ 22.39
$ 22.39
$ 17.89
$ 17.89 - $ 17.89
$ 17.89

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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$ 22.39
$ 22.39 - $ 22.39
$ 22.39
$ 17.89
$ 17.89 - $ 17.89
$ 17.89
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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 %
$ 27.89
$ 27.89 - $ 27.89
$ 27.89
$ 22.29
$ 22.29 - $ 22.29
$ 22.29

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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$ 27.89
$ 27.89 - $ 27.89
$ 27.89
$ 22.29
$ 22.29 - $ 22.29
$ 22.29
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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 %
$ 28.09
$ 28.09 - $ 28.09
$ 28.09
$ 22.49
$ 22.49 - $ 22.49
$ 22.49

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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$ 28.09
$ 28.09 - $ 28.09
$ 28.09
$ 22.49
$ 22.49 - $ 22.49
$ 22.49
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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 %
$ 21.09
$ 21.09 - $ 21.09
$ 21.09
$ 16.89
$ 16.89 - $ 16.89
$ 16.89

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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$ 21.09
$ 21.09 - $ 21.09
$ 21.09
$ 16.89
$ 16.89 - $ 16.89
$ 16.89
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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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$ 402.39
$ 402.39 - $ 402.39
$ 402.39
$ 321.89
$ 321.89 - $ 321.89
$ 321.89

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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$ 402.39
$ 402.39 - $ 402.39
$ 402.39
$ 321.89
$ 321.89 - $ 321.89
$ 321.89
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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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$ 137.19
$ 137.19 - $ 137.19
$ 137.19
$ 109.79
$ 109.79 - $ 109.79
$ 109.79

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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$ 137.19
$ 137.19 - $ 137.19
$ 137.19
$ 109.79
$ 109.79 - $ 109.79
$ 109.79
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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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$ 122.09
$ 122.09 - $ 122.09
$ 122.09
$ 97.69
$ 97.69 - $ 97.69
$ 97.69

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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$ 122.09
$ 122.09 - $ 122.09
$ 122.09
$ 97.69
$ 97.69 - $ 97.69
$ 97.69
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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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$ 188.69
$ 188.69 - $ 188.69
$ 188.69
$ 150.99
$ 150.99 - $ 150.99
$ 150.99

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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$ 188.69
$ 188.69 - $ 188.69
$ 188.69
$ 150.99
$ 150.99 - $ 150.99
$ 150.99
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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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$ 101.19
$ 101.19 - $ 101.19
$ 101.19
$ 80.99
$ 80.99 - $ 80.99
$ 80.99

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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$ 101.19
$ 101.19 - $ 101.19
$ 101.19
$ 80.99
$ 80.99 - $ 80.99
$ 80.99
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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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$ 273.19
$ 273.19 - $ 273.19
$ 273.19
$ 218.49
$ 218.49 - $ 218.49
$ 218.49

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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$ 273.19
$ 273.19 - $ 273.19
$ 273.19
$ 218.49
$ 218.49 - $ 218.49
$ 218.49
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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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$ 99.99
$ 99.99 - $ 99.99
$ 99.99
$ 79.99
$ 79.99 - $ 79.99
$ 79.99

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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$ 99.99
$ 99.99 - $ 99.99
$ 99.99
$ 79.99
$ 79.99 - $ 79.99
$ 79.99
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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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$ 129.99
$ 129.99 - $ 129.99
$ 129.99
$ 103.99
$ 103.99 - $ 103.99
$ 103.99

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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$ 129.99
$ 129.99 - $ 129.99
$ 129.99
$ 103.99
$ 103.99 - $ 103.99
$ 103.99
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 %
$ 70.89
$ 70.89 - $ 70.89
$ 70.89
$ 56.79
$ 56.79 - $ 56.79
$ 56.79

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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$ 70.89
$ 70.89 - $ 70.89
$ 70.89
$ 56.79
$ 56.79 - $ 56.79
$ 56.79
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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$ 169.19
$ 169.19 - $ 169.19
$ 169.19
$ 135.39
$ 135.39 - $ 135.39
$ 135.39

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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$ 169.19
$ 169.19 - $ 169.19
$ 169.19
$ 135.39
$ 135.39 - $ 135.39
$ 135.39
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 %
$ 58.99
$ 58.99 - $ 58.99
$ 58.99
$ 47.19
$ 47.19 - $ 47.19
$ 47.19

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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$ 58.99
$ 58.99 - $ 58.99
$ 58.99
$ 47.19
$ 47.19 - $ 47.19
$ 47.19
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 %
$ 75.79
$ 75.79 - $ 75.79
$ 75.79
$ 60.59
$ 60.59 - $ 60.59
$ 60.59

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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$ 75.79
$ 75.79 - $ 75.79
$ 75.79
$ 60.59
$ 60.59 - $ 60.59
$ 60.59
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 %
$ 52.39
$ 52.39 - $ 52.39
$ 52.39
$ 41.89
$ 41.89 - $ 41.89
$ 41.89

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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$ 52.39
$ 52.39 - $ 52.39
$ 52.39
$ 41.89
$ 41.89 - $ 41.89
$ 41.89
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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$ 100.59
$ 100.59 - $ 100.59
$ 100.59
$ 80.49
$ 80.49 - $ 80.49
$ 80.49

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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$ 100.59
$ 100.59 - $ 100.59
$ 100.59
$ 80.49
$ 80.49 - $ 80.49
$ 80.49
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 %
$ 47.59
$ 47.59 - $ 47.59
$ 47.59
$ 38.09
$ 38.09 - $ 38.09
$ 38.09

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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$ 47.59
$ 47.59 - $ 47.59
$ 47.59
$ 38.09
$ 38.09 - $ 38.09
$ 38.09
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 %
$ 49.09
$ 49.09 - $ 49.09
$ 49.09
$ 39.29
$ 39.29 - $ 39.29
$ 39.29

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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$ 49.09
$ 49.09 - $ 49.09
$ 49.09
$ 39.29
$ 39.29 - $ 39.29
$ 39.29
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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$ 31.89
$ 31.89 - $ 31.89
$ 31.89
$ 25.59
$ 25.59 - $ 25.59
$ 25.59

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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$ 31.89
$ 31.89 - $ 31.89
$ 31.89
$ 25.59
$ 25.59 - $ 25.59
$ 25.59
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 %
$ 36.09
$ 36.09 - $ 36.09
$ 36.09
$ 28.89
$ 28.89 - $ 28.89
$ 28.89

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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$ 36.09
$ 36.09 - $ 36.09
$ 36.09
$ 28.89
$ 28.89 - $ 28.89
$ 28.89
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 %
$ 76.99
$ 76.99 - $ 76.99
$ 76.99
$ 61.59
$ 61.59 - $ 61.59
$ 61.59

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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$ 76.99
$ 76.99 - $ 76.99
$ 76.99
$ 61.59
$ 61.59 - $ 61.59
$ 61.59
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 %
$ 36.89
$ 36.89 - $ 36.89
$ 36.89
$ 29.49
$ 29.49 - $ 29.49
$ 29.49

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 ...

View full details
$ 36.89
$ 36.89 - $ 36.89
$ 36.89
$ 29.49
$ 29.49 - $ 29.49
$ 29.49
Save 20% Save %

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