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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 %
$ 424.00
$ 424.00 - $ 424.00
$ 424.00
$ 340.00
$ 340.00 - $ 340.00
$ 340.00

Foster 210M-3703, 1/4" ARO Coupler x 3/8" Hose ID, 210 Series, Manual, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3703 is a brass and steel 1/4" coupler from ...

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$ 424.00
$ 424.00 - $ 424.00
$ 424.00
$ 340.00
$ 340.00 - $ 340.00
$ 340.00
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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 %
$ 1,340.00
$ 1,340.00 - $ 1,340.00
$ 1,340.00
$ 1,072.00
$ 1,072.00 - $ 1,072.00
$ 1,072.00

Foster 210M-3653S/S, 1/4" ARO Coupler x 1/4" Hose ID, 210 Series, Manual, 303 Stainless Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3653S/S is a 303 stainless steel 1/4" couple...

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$ 1,340.00
$ 1,340.00 - $ 1,340.00
$ 1,340.00
$ 1,072.00
$ 1,072.00 - $ 1,072.00
$ 1,072.00
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 %
$ 1,169.00
$ 1,169.00 - $ 1,169.00
$ 1,169.00
$ 935.00
$ 935.00 - $ 935.00
$ 935.00

Foster 210M-3603S/S, 1/4" ARO Coupler x 1/4" Hose ID, 210 Series, Manual, 303 Stainless Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3603S/S is a 303 stainless steel 1/4" couple...

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$ 1,169.00
$ 1,169.00 - $ 1,169.00
$ 1,169.00
$ 935.00
$ 935.00 - $ 935.00
$ 935.00
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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 %
$ 526.00
$ 526.00 - $ 526.00
$ 526.00
$ 421.00
$ 421.00 - $ 421.00
$ 421.00

Foster 210M-3603NP, 1/4" ARO Coupler x 1/4" Hose ID, 210 Series, Manual, Nickel-Plated Brass/Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3603NP is a nickel-plated brass/steel 1/4" c...

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$ 526.00
$ 526.00 - $ 526.00
$ 526.00
$ 421.00
$ 421.00 - $ 421.00
$ 421.00
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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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$ 301.00
$ 301.00 - $ 301.00
$ 301.00
$ 241.00
$ 241.00 - $ 241.00
$ 241.00

Foster 210M-3603, 1/4" ARO Coupler x 1/4" Hose ID, 210 Series, Manual, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3603 is a brass and steel 1/4" coupler from ...

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$ 301.00
$ 301.00 - $ 301.00
$ 301.00
$ 241.00
$ 241.00 - $ 241.00
$ 241.00
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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 %
$ 935.00
$ 935.00 - $ 935.00
$ 935.00
$ 748.00
$ 748.00 - $ 748.00
$ 748.00

Foster 210M-3303S/S, 1/4" ARO Coupler x 3/8" Male NPT, 210 Series, Manual, 303 Stainless Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3303S/S is a 303 stainless steel 1/4" couple...

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$ 935.00
$ 935.00 - $ 935.00
$ 935.00
$ 748.00
$ 748.00 - $ 748.00
$ 748.00
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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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$ 410.00
$ 410.00 - $ 410.00
$ 410.00
$ 329.00
$ 329.00 - $ 329.00
$ 329.00

Foster 210M-3303, 1/4" ARO Coupler x 3/8" Male NPT, 210 Series, Manual, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3303 is a brass and steel 1/4" coupler from ...

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$ 410.00
$ 410.00 - $ 410.00
$ 410.00
$ 329.00
$ 329.00 - $ 329.00
$ 329.00
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 %
$ 942.00
$ 942.00 - $ 942.00
$ 942.00
$ 754.00
$ 754.00 - $ 754.00
$ 754.00

Foster 210M-3203S/S, 1/4" ARO Coupler x 3/8" Female NPT, 210 Series, Manual, 303 Stainless Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3203S/S is a 303 stainless steel 1/4" couple...

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$ 942.00
$ 942.00 - $ 942.00
$ 942.00
$ 754.00
$ 754.00 - $ 754.00
$ 754.00
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 %
$ 442.00
$ 442.00 - $ 442.00
$ 442.00
$ 354.00
$ 354.00 - $ 354.00
$ 354.00

Foster 210M-3203, 1/4" ARO Coupler x 3/8" Female NPT, 210 Series, Manual, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3203 is a brass and steel 1/4" coupler from ...

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$ 442.00
$ 442.00 - $ 442.00
$ 442.00
$ 354.00
$ 354.00 - $ 354.00
$ 354.00
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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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$ 801.00
$ 801.00 - $ 801.00
$ 801.00
$ 641.00
$ 641.00 - $ 641.00
$ 641.00

Foster 210M-3103S/S, 1/4" ARO Coupler x 1/4" Male NPT, 210 Series, Manual, 303 Stainless Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3103S/S is a 303 stainless steel 1/4" couple...

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$ 801.00
$ 801.00 - $ 801.00
$ 801.00
$ 641.00
$ 641.00 - $ 641.00
$ 641.00
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 %
$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 396.00
$ 396.00 - $ 396.00
$ 396.00

Foster 210M-3103NP, 1/4" ARO Coupler x 1/4" Male NPT, 210 Series, Manual, Nickel-Plated Brass/Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3103NP is a nickel-plated brass/steel 1/4" c...

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$ 497.00
$ 497.00 - $ 497.00
$ 497.00
$ 396.00
$ 396.00 - $ 396.00
$ 396.00
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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 %
$ 284.00
$ 284.00 - $ 284.00
$ 284.00
$ 227.00
$ 227.00 - $ 227.00
$ 227.00

Foster 210M-3103, 1/4" ARO Coupler x 1/4" Male NPT, 210 Series, Manual, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3103 is a brass and steel 1/4" coupler from ...

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$ 284.00
$ 284.00 - $ 284.00
$ 284.00
$ 227.00
$ 227.00 - $ 227.00
$ 227.00
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 %
$ 792.00
$ 792.00 - $ 792.00
$ 792.00
$ 634.00
$ 634.00 - $ 634.00
$ 634.00

Foster 210M-3003S/S, 1/4" ARO Coupler x 1/4" Female NPT, 210 Series, Manual, 303 Stainless Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3003S/S is a 303 stainless steel 1/4" couple...

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$ 792.00
$ 792.00 - $ 792.00
$ 792.00
$ 634.00
$ 634.00 - $ 634.00
$ 634.00
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 %
$ 578.00
$ 578.00 - $ 578.00
$ 578.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00

Foster 210M-3003NP, 1/4" ARO Coupler x 1/4" Female NPT, 210 Series, Manual, Nickel-Plated Brass/Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3003NP is a nickel-plated brass/steel 1/4" c...

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$ 578.00
$ 578.00 - $ 578.00
$ 578.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00
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 %
$ 266.00
$ 266.00 - $ 266.00
$ 266.00
$ 213.00
$ 213.00 - $ 213.00
$ 213.00

Foster 210M-3003, 1/4" ARO Coupler x 1/4" Female NPT, 210 Series, Manual, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-3003 is a brass and steel 1/4" coupler from ...

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$ 266.00
$ 266.00 - $ 266.00
$ 266.00
$ 213.00
$ 213.00 - $ 213.00
$ 213.00
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 %
$ 929.00
$ 929.00 - $ 929.00
$ 929.00
$ 743.00
$ 743.00 - $ 743.00
$ 743.00

Foster 210M-2903S/S, 1/4" ARO Coupler x 1/8" Male NPT, 210 Series, Manual, 303 Stainless Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-2903S/S is a 303 stainless steel 1/4" couple...

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$ 929.00
$ 929.00 - $ 929.00
$ 929.00
$ 743.00
$ 743.00 - $ 743.00
$ 743.00
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 %
$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 468.00
$ 468.00 - $ 468.00
$ 468.00

Foster 210M-2903NP, 1/4" ARO Coupler x 1/8" Male NPT, 210 Series, Manual, Nickel-Plated Brass/Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-2903NP is a nickel-plated brass/steel 1/4" c...

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$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 468.00
$ 468.00 - $ 468.00
$ 468.00
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 %
$ 326.00
$ 326.00 - $ 326.00
$ 326.00
$ 261.00
$ 261.00 - $ 261.00
$ 261.00

Foster 210M-2903, 1/4" ARO Coupler x 1/8" Male NPT, 210 Series, Manual, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-2903 is a brass and steel 1/4" coupler from ...

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$ 326.00
$ 326.00 - $ 326.00
$ 326.00
$ 261.00
$ 261.00 - $ 261.00
$ 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 %
$ 569.00
$ 569.00 - $ 569.00
$ 569.00
$ 456.00
$ 456.00 - $ 456.00
$ 456.00

Foster 210M-2803NP, 1/4" ARO Coupler x 1/8" Female NPT, 210 Series, Manual, Nickel-Plated Brass/Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-2803NP is a nickel-plated brass/steel 1/4" c...

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$ 569.00
$ 569.00 - $ 569.00
$ 569.00
$ 456.00
$ 456.00 - $ 456.00
$ 456.00
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 %
$ 366.00
$ 366.00 - $ 366.00
$ 366.00
$ 294.00
$ 294.00 - $ 294.00
$ 294.00

Foster 210M-2803, 1/4" ARO Coupler x 1/8" Female NPT, 210 Series, Manual, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210M-2803 is a brass and steel 1/4" coupler from ...

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$ 366.00
$ 366.00 - $ 366.00
$ 366.00
$ 294.00
$ 294.00 - $ 294.00
$ 294.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 19% Save %
$ 108.00
$ 108.00 - $ 108.00
$ 108.00
$ 87.00
$ 87.00 - $ 87.00
$ 87.00

Foster 210-51, 1/4" ARO Plug x 1/4" Push-On Hose Stem, 210 Series, Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210-51 is a steel 1/4" plug from the Foster 210 S...

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$ 108.00
$ 108.00 - $ 108.00
$ 108.00
$ 87.00
$ 87.00 - $ 87.00
$ 87.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 1,192.00
$ 1,192.00 - $ 1,192.00
$ 1,192.00
$ 954.00
$ 954.00 - $ 954.00
$ 954.00

Foster 210-3703S/S, 1/4" ARO Coupler x 3/8" Hose ID, 210 Series, Automatic, 303 Stainless Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210-3703S/S is a 303 stainless steel 1/4" coupler...

View full details
$ 1,192.00
$ 1,192.00 - $ 1,192.00
$ 1,192.00
$ 954.00
$ 954.00 - $ 954.00
$ 954.00
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 %
$ 305.00
$ 305.00 - $ 305.00
$ 305.00
$ 245.00
$ 245.00 - $ 245.00
$ 245.00

Foster 210-3703, 1/4" ARO Coupler x 3/8" Hose ID, 210 Series, Automatic, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210-3703 is a brass and steel 1/4" coupler from t...

View full details
$ 305.00
$ 305.00 - $ 305.00
$ 305.00
$ 245.00
$ 245.00 - $ 245.00
$ 245.00
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 %
$ 326.00
$ 326.00 - $ 326.00
$ 326.00
$ 261.00
$ 261.00 - $ 261.00
$ 261.00

Foster 210-3653, 1/4" ARO Coupler x 1/4" Hose ID, 210 Series, Automatic, Brass and Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210-3653 is a brass and steel 1/4" coupler from t...

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$ 326.00
$ 326.00 - $ 326.00
$ 326.00
$ 261.00
$ 261.00 - $ 261.00
$ 261.00
Save 20% Save %

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