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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 %
$ 2,975.00
$ 2,975.00 - $ 2,975.00
$ 2,975.00
$ 2,381.00
$ 2,381.00 - $ 2,381.00
$ 2,381.00

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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$ 2,975.00
$ 2,975.00 - $ 2,975.00
$ 2,975.00
$ 2,381.00
$ 2,381.00 - $ 2,381.00
$ 2,381.00
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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 %
$ 1,038.00
$ 1,038.00 - $ 1,038.00
$ 1,038.00
$ 830.00
$ 830.00 - $ 830.00
$ 830.00

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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$ 1,038.00
$ 1,038.00 - $ 1,038.00
$ 1,038.00
$ 830.00
$ 830.00 - $ 830.00
$ 830.00
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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 %
$ 1,333.00
$ 1,333.00 - $ 1,333.00
$ 1,333.00
$ 1,066.00
$ 1,066.00 - $ 1,066.00
$ 1,066.00

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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$ 1,333.00
$ 1,333.00 - $ 1,333.00
$ 1,333.00
$ 1,066.00
$ 1,066.00 - $ 1,066.00
$ 1,066.00
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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 %
$ 922.00
$ 922.00 - $ 922.00
$ 922.00
$ 737.00
$ 737.00 - $ 737.00
$ 737.00

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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$ 922.00
$ 922.00 - $ 922.00
$ 922.00
$ 737.00
$ 737.00 - $ 737.00
$ 737.00
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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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$ 1,769.00
$ 1,769.00 - $ 1,769.00
$ 1,769.00
$ 1,415.00
$ 1,415.00 - $ 1,415.00
$ 1,415.00

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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$ 1,769.00
$ 1,769.00 - $ 1,769.00
$ 1,769.00
$ 1,415.00
$ 1,415.00 - $ 1,415.00
$ 1,415.00
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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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$ 837.00
$ 837.00 - $ 837.00
$ 837.00
$ 670.00
$ 670.00 - $ 670.00
$ 670.00

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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$ 837.00
$ 837.00 - $ 837.00
$ 837.00
$ 670.00
$ 670.00 - $ 670.00
$ 670.00
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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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$ 863.00
$ 863.00 - $ 863.00
$ 863.00
$ 691.00
$ 691.00 - $ 691.00
$ 691.00

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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$ 863.00
$ 863.00 - $ 863.00
$ 863.00
$ 691.00
$ 691.00 - $ 691.00
$ 691.00
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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$ 561.00
$ 561.00 - $ 561.00
$ 561.00
$ 450.00
$ 450.00 - $ 450.00
$ 450.00

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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$ 561.00
$ 561.00 - $ 561.00
$ 561.00
$ 450.00
$ 450.00 - $ 450.00
$ 450.00
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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$ 635.00
$ 635.00 - $ 635.00
$ 635.00
$ 508.00
$ 508.00 - $ 508.00
$ 508.00

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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$ 635.00
$ 635.00 - $ 635.00
$ 635.00
$ 508.00
$ 508.00 - $ 508.00
$ 508.00
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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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$ 1,354.00
$ 1,354.00 - $ 1,354.00
$ 1,354.00
$ 1,083.00
$ 1,083.00 - $ 1,083.00
$ 1,083.00

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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$ 1,354.00
$ 1,354.00 - $ 1,354.00
$ 1,354.00
$ 1,083.00
$ 1,083.00 - $ 1,083.00
$ 1,083.00
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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$ 649.00
$ 649.00 - $ 649.00
$ 649.00
$ 519.00
$ 519.00 - $ 519.00
$ 519.00

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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$ 649.00
$ 649.00 - $ 649.00
$ 649.00
$ 519.00
$ 519.00 - $ 519.00
$ 519.00
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 %
$ 595.00
$ 595.00 - $ 595.00
$ 595.00
$ 475.00
$ 475.00 - $ 475.00
$ 475.00

Foster BLH1S4, 1/8" ISO-B Hydraulic Coupler x 7/16"-20 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 BLH1S4 is a steel 1/8" coupler in the FHK...

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$ 595.00
$ 595.00 - $ 595.00
$ 595.00
$ 475.00
$ 475.00 - $ 475.00
$ 475.00
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 %
$ 1,322.00
$ 1,322.00 - $ 1,322.00
$ 1,322.00
$ 1,057.00
$ 1,057.00 - $ 1,057.00
$ 1,057.00

Foster BLH1S/S, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 BLH1S/S is a 303 stainless 1/8" coupler i...

View full details
$ 1,322.00
$ 1,322.00 - $ 1,322.00
$ 1,322.00
$ 1,057.00
$ 1,057.00 - $ 1,057.00
$ 1,057.00
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 %
$ 529.00
$ 529.00 - $ 529.00
$ 529.00
$ 424.00
$ 424.00 - $ 424.00
$ 424.00

Foster BLH1S, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 BLH1S is a steel 1/8" coupler in the FHK ...

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$ 529.00
$ 529.00 - $ 529.00
$ 529.00
$ 424.00
$ 424.00 - $ 424.00
$ 424.00
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 %
$ 533.00
$ 533.00 - $ 533.00
$ 533.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 BLH1B is a brass 1/8" coupler in the FHK ...

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$ 533.00
$ 533.00 - $ 533.00
$ 533.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00
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 %
$ 1,481.00
$ 1,481.00 - $ 1,481.00
$ 1,481.00
$ 1,185.00
$ 1,185.00 - $ 1,185.00
$ 1,185.00

Foster SVPC5905, 1/2" Industrial Coupler x 3/4" Hose ID, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5905 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

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$ 1,481.00
$ 1,481.00 - $ 1,481.00
$ 1,481.00
$ 1,185.00
$ 1,185.00 - $ 1,185.00
$ 1,185.00
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 %
$ 1,484.00
$ 1,484.00 - $ 1,484.00
$ 1,484.00
$ 1,189.00
$ 1,189.00 - $ 1,189.00
$ 1,189.00

Foster SVPC5805, 1/2" Industrial Coupler x 1/2" Hose ID, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5805 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

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$ 1,484.00
$ 1,484.00 - $ 1,484.00
$ 1,484.00
$ 1,189.00
$ 1,189.00 - $ 1,189.00
$ 1,189.00
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 %
$ 1,519.00
$ 1,519.00 - $ 1,519.00
$ 1,519.00
$ 1,215.00
$ 1,215.00 - $ 1,215.00
$ 1,215.00

Foster SVPC5705, 1/2" Industrial Coupler x 3/8" Hose ID, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5705 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

View full details
$ 1,519.00
$ 1,519.00 - $ 1,519.00
$ 1,519.00
$ 1,215.00
$ 1,215.00 - $ 1,215.00
$ 1,215.00
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 %
$ 1,575.00
$ 1,575.00 - $ 1,575.00
$ 1,575.00
$ 1,261.00
$ 1,261.00 - $ 1,261.00
$ 1,261.00

Foster SVPC5505, 1/2" Industrial Coupler x 3/4" Male NPT, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5505 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

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$ 1,575.00
$ 1,575.00 - $ 1,575.00
$ 1,575.00
$ 1,261.00
$ 1,261.00 - $ 1,261.00
$ 1,261.00
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 %
$ 1,584.00
$ 1,584.00 - $ 1,584.00
$ 1,584.00
$ 1,268.00
$ 1,268.00 - $ 1,268.00
$ 1,268.00

Foster SVPC5405, 1/2" Industrial Coupler x 3/4" Female NPT, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5405 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

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$ 1,584.00
$ 1,584.00 - $ 1,584.00
$ 1,584.00
$ 1,268.00
$ 1,268.00 - $ 1,268.00
$ 1,268.00
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 %
$ 1,463.00
$ 1,463.00 - $ 1,463.00
$ 1,463.00
$ 1,171.00
$ 1,171.00 - $ 1,171.00
$ 1,171.00

Foster SVPC5305, 1/2" Industrial Coupler x 1/2" Male NPT, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5305 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

View full details
$ 1,463.00
$ 1,463.00 - $ 1,463.00
$ 1,463.00
$ 1,171.00
$ 1,171.00 - $ 1,171.00
$ 1,171.00
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 %
$ 1,488.00
$ 1,488.00 - $ 1,488.00
$ 1,488.00
$ 1,190.00
$ 1,190.00 - $ 1,190.00
$ 1,190.00

Foster SVPC5205, 1/2" Industrial Coupler x 1/2" Female NPT, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5205 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

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$ 1,488.00
$ 1,488.00 - $ 1,488.00
$ 1,488.00
$ 1,190.00
$ 1,190.00 - $ 1,190.00
$ 1,190.00
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 %
$ 1,496.00
$ 1,496.00 - $ 1,496.00
$ 1,496.00
$ 1,198.00
$ 1,198.00 - $ 1,198.00
$ 1,198.00

Foster SVPC5105, 1/2" Industrial Coupler x 3/8" Male NPT, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5105 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

View full details
$ 1,496.00
$ 1,496.00 - $ 1,496.00
$ 1,496.00
$ 1,198.00
$ 1,198.00 - $ 1,198.00
$ 1,198.00
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 %
$ 1,519.00
$ 1,519.00 - $ 1,519.00
$ 1,519.00
$ 1,215.00
$ 1,215.00 - $ 1,215.00
$ 1,215.00

Foster SVPC5005, 1/2" Industrial Coupler x 3/8" Female NPT, SV Series, Safety Vent, Protective Cover, Steel

Safer air disconnects for shop air and pneumatic tools. The Foster SVPC5005 is a steel 1/2" Safety Vent coupler from the SV Series, interchangeable...

View full details
$ 1,519.00
$ 1,519.00 - $ 1,519.00
$ 1,519.00
$ 1,215.00
$ 1,215.00 - $ 1,215.00
$ 1,215.00
Save 20% Save %

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