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Foster

Foster quick couplers set the standard in pneumatic and hydraulic connections. Part of the ZSI-Foster line, Foster couplers and plugs cover the full range of industrial interchanges and body sizes in steel, brass, and stainless construction. Built for reliable, repeatable connections in air and fluid systems. Shop the full Foster range below.

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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 %
$ 18.29
$ 18.29 - $ 18.29
$ 18.29
$ 14.69
$ 14.69 - $ 14.69
$ 14.69

Foster K2B-104, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Silicone Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2B-104 is a brass 1/4" plug in the FHK S...

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$ 18.29
$ 18.29 - $ 18.29
$ 18.29
$ 14.69
$ 14.69 - $ 14.69
$ 14.69
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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 %
$ 16.89
$ 16.89 - $ 16.89
$ 16.89
$ 13.49
$ 13.49 - $ 13.49
$ 13.49

Foster K2B-103, 1/4" ISO-B Hydraulic Plug x 1/4" 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 K2B-103 is a brass 1/4" plug in the FHK S...

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$ 16.89
$ 16.89 - $ 16.89
$ 16.89
$ 13.49
$ 13.49 - $ 13.49
$ 13.49
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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 %
$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.09
$ 14.09 - $ 14.09
$ 14.09

Foster K2B-102, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Neoprene Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2B-102 is a brass 1/4" plug in the FHK S...

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$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.09
$ 14.09 - $ 14.09
$ 14.09
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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 %
$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.19
$ 14.19 - $ 14.19
$ 14.19

Foster K2B-101, 1/4" ISO-B Hydraulic Plug x 1/4" 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 K2B-101 is a brass 1/4" plug in the FHK S...

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$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.19
$ 14.19 - $ 14.19
$ 14.19
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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$ 13.09
$ 13.09 - $ 13.09
$ 13.09
$ 10.49
$ 10.49 - $ 10.49
$ 10.49

Foster K2B, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2B is a brass 1/4" plug in the FHK Serie...

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$ 13.09
$ 13.09 - $ 13.09
$ 13.09
$ 10.49
$ 10.49 - $ 10.49
$ 10.49
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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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$ 9.99
$ 9.99 - $ 9.99
$ 9.99
$ 7.99
$ 7.99 - $ 7.99
$ 7.99

Foster K1S4, 1/8" ISO-B Hydraulic Plug x 7/16"-20 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1S4 is a steel 1/8" plug in the FHK Seri...

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$ 9.99
$ 9.99 - $ 9.99
$ 9.99
$ 7.99
$ 7.99 - $ 7.99
$ 7.99
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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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$ 11.99
$ 11.99 - $ 11.99
$ 11.99
$ 9.59
$ 9.59 - $ 9.59
$ 9.59

Foster K1S-101, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1S-101 is a steel 1/8" plug in the FHK S...

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$ 11.99
$ 11.99 - $ 11.99
$ 11.99
$ 9.59
$ 9.59 - $ 9.59
$ 9.59
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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$ 28.59
$ 28.59 - $ 28.59
$ 28.59
$ 22.89
$ 22.89 - $ 22.89
$ 22.89

Foster K1S/S-101, 1/8" ISO-B Hydraulic Plug 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 K1S/S-101 is a 303 stainless 1/8" plug in...

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$ 28.59
$ 28.59 - $ 28.59
$ 28.59
$ 22.89
$ 22.89 - $ 22.89
$ 22.89
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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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$ 25.59
$ 25.59 - $ 25.59
$ 25.59
$ 20.49
$ 20.49 - $ 20.49
$ 20.49

Foster K1S/S, 1/8" ISO-B Hydraulic Plug 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 K1S/S is a 303 stainless 1/8" plug in the...

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$ 25.59
$ 25.59 - $ 25.59
$ 25.59
$ 20.49
$ 20.49 - $ 20.49
$ 20.49
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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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$ 8.49
$ 8.49 - $ 8.49
$ 8.49
$ 6.79
$ 6.79 - $ 6.79
$ 6.79

Foster K1S, 1/8" ISO-B Hydraulic Plug 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 K1S is a steel 1/8" plug in the FHK Serie...

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$ 8.49
$ 8.49 - $ 8.49
$ 8.49
$ 6.79
$ 6.79 - $ 6.79
$ 6.79
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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$ 10.59
$ 10.59 - $ 10.59
$ 10.59
$ 8.49
$ 8.49 - $ 8.49
$ 8.49

Foster K1BLV, 1/8" ISO-B Hydraulic Plug 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 K1BLV is a brass 1/8" plug in the FHK Ser...

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$ 10.59
$ 10.59 - $ 10.59
$ 10.59
$ 8.49
$ 8.49 - $ 8.49
$ 8.49
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 %
$ 13.29
$ 13.29 - $ 13.29
$ 13.29
$ 10.69
$ 10.69 - $ 10.69
$ 10.69

Foster K1B-103, 1/8" ISO-B Hydraulic Plug 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 K1B-103 is a brass 1/8" plug in the FHK S...

View full details
$ 13.29
$ 13.29 - $ 13.29
$ 13.29
$ 10.69
$ 10.69 - $ 10.69
$ 10.69
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 %
$ 14.09
$ 14.09 - $ 14.09
$ 14.09
$ 11.29
$ 11.29 - $ 11.29
$ 11.29

Foster K1B-101, 1/8" ISO-B Hydraulic Plug 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 K1B-101 is a brass 1/8" plug in the FHK S...

View full details
$ 14.09
$ 14.09 - $ 14.09
$ 14.09
$ 11.29
$ 11.29 - $ 11.29
$ 11.29
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 %
$ 9.59
$ 9.59 - $ 9.59
$ 9.59
$ 7.69
$ 7.69 - $ 7.69
$ 7.69

Foster K1B, 1/8" ISO-B Hydraulic Plug 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 K1B is a brass 1/8" plug in the FHK Serie...

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$ 9.59
$ 9.59 - $ 9.59
$ 9.59
$ 7.69
$ 7.69 - $ 7.69
$ 7.69
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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$ 110.39
$ 110.39 - $ 110.39
$ 110.39
$ 88.29
$ 88.29 - $ 88.29
$ 88.29

Foster H8SLV, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Less Valve, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H8SLV is a steel 1" coupler in the FHK Se...

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$ 110.39
$ 110.39 - $ 110.39
$ 110.39
$ 88.29
$ 88.29 - $ 88.29
$ 88.29
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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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$ 125.19
$ 125.19 - $ 125.19
$ 125.19
$ 100.19
$ 100.19 - $ 100.19
$ 100.19

Foster H8S16, 1" ISO-B Hydraulic Coupler x 15/16"-12 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H8S16 is a steel 1" coupler in the FHK Se...

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$ 125.19
$ 125.19 - $ 125.19
$ 125.19
$ 100.19
$ 100.19 - $ 100.19
$ 100.19
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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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$ 125.89
$ 125.89 - $ 125.89
$ 125.89
$ 100.79
$ 100.79 - $ 100.79
$ 100.79

Foster H8S-101, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H8S-101 is a steel 1" coupler in the FHK ...

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$ 125.89
$ 125.89 - $ 125.89
$ 125.89
$ 100.79
$ 100.79 - $ 100.79
$ 100.79
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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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$ 400.29
$ 400.29 - $ 400.29
$ 400.29
$ 320.19
$ 320.19 - $ 320.19
$ 320.19

Foster H8S/S-103, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H8S/S-103 is a 303 stainless 1" coupler i...

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$ 400.29
$ 400.29 - $ 400.29
$ 400.29
$ 320.19
$ 320.19 - $ 320.19
$ 320.19
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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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$ 404.59
$ 404.59 - $ 404.59
$ 404.59
$ 323.69
$ 323.69 - $ 323.69
$ 323.69

Foster H8S/S-101, 1" ISO-B Hydraulic Coupler x 1" 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 H8S/S-101 is a 303 stainless 1" coupler i...

View full details
$ 404.59
$ 404.59 - $ 404.59
$ 404.59
$ 323.69
$ 323.69 - $ 323.69
$ 323.69
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 %
$ 381.59
$ 381.59 - $ 381.59
$ 381.59
$ 305.29
$ 305.29 - $ 305.29
$ 305.29

Foster H8S/S, 1" ISO-B Hydraulic Coupler x 1" 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 H8S/S is a 303 stainless 1" coupler in th...

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$ 381.59
$ 381.59 - $ 381.59
$ 381.59
$ 305.29
$ 305.29 - $ 305.29
$ 305.29
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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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$ 108.29
$ 108.29 - $ 108.29
$ 108.29
$ 86.59
$ 86.59 - $ 86.59
$ 86.59

Foster H8S, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H8S is a steel 1" coupler in the FHK Seri...

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$ 108.29
$ 108.29 - $ 108.29
$ 108.29
$ 86.59
$ 86.59 - $ 86.59
$ 86.59
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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$ 191.79
$ 191.79 - $ 191.79
$ 191.79
$ 153.39
$ 153.39 - $ 153.39
$ 153.39

Foster H8B-103, 1" ISO-B Hydraulic Coupler x 1" 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 H8B-103 is a brass 1" coupler in the FHK ...

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$ 191.79
$ 191.79 - $ 191.79
$ 191.79
$ 153.39
$ 153.39 - $ 153.39
$ 153.39
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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$ 189.39
$ 189.39 - $ 189.39
$ 189.39
$ 151.59
$ 151.59 - $ 151.59
$ 151.59

Foster H8B-101, 1" ISO-B Hydraulic Coupler x 1" 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 H8B-101 is a brass 1" coupler in the FHK ...

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$ 189.39
$ 189.39 - $ 189.39
$ 189.39
$ 151.59
$ 151.59 - $ 151.59
$ 151.59
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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$ 171.09
$ 171.09 - $ 171.09
$ 171.09
$ 136.89
$ 136.89 - $ 136.89
$ 136.89

Foster H8B, 1" ISO-B Hydraulic Coupler x 1" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H8B is a brass 1" coupler in the FHK Seri...

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$ 171.09
$ 171.09 - $ 171.09
$ 171.09
$ 136.89
$ 136.89 - $ 136.89
$ 136.89
Save 20% Save %

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