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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 %
$ 392.00
$ 392.00 - $ 392.00
$ 392.00
$ 314.00
$ 314.00 - $ 314.00
$ 314.00

Foster 3203GS, 1/4" Industrial Coupler x 3/8" Female NPT, 3 Series, Automatic Slim Profile, Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3203GS is a Steel 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 392.00
$ 392.00 - $ 392.00
$ 392.00
$ 314.00
$ 314.00 - $ 314.00
$ 314.00
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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 %
$ 506.00
$ 506.00 - $ 506.00
$ 506.00
$ 406.00
$ 406.00 - $ 406.00
$ 406.00

Foster 3203GB, 1/4" Industrial Coupler x 3/8" Female NPT, 3 Series, Automatic Slim Profile, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3203GB is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 506.00
$ 506.00 - $ 506.00
$ 506.00
$ 406.00
$ 406.00 - $ 406.00
$ 406.00
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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
$ 298.00
$ 298.00 - $ 298.00
$ 298.00

Foster 3003GS, 1/4" Industrial Coupler x 1/4" Female NPT, 3 Series, Automatic Slim Profile, Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3003GS is a Steel 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 373.00
$ 373.00 - $ 373.00
$ 373.00
$ 298.00
$ 298.00 - $ 298.00
$ 298.00
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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 %
$ 408.00
$ 408.00 - $ 408.00
$ 408.00
$ 326.00
$ 326.00 - $ 326.00
$ 326.00

Foster 3003GB, 1/4" Industrial Coupler x 1/4" Female NPT, 3 Series, Automatic Slim Profile, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3003GB is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 408.00
$ 408.00 - $ 408.00
$ 408.00
$ 326.00
$ 326.00 - $ 326.00
$ 326.00
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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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$ 515.00
$ 515.00 - $ 515.00
$ 515.00
$ 413.00
$ 413.00 - $ 413.00
$ 413.00

Foster 2803GS, 1/4" Industrial Coupler x 1/8" Female NPT, 3 Series, Automatic Slim Profile, Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 2803GS is a Steel 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 515.00
$ 515.00 - $ 515.00
$ 515.00
$ 413.00
$ 413.00 - $ 413.00
$ 413.00
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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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$ 446.00
$ 446.00 - $ 446.00
$ 446.00
$ 356.00
$ 356.00 - $ 356.00
$ 356.00

Foster 2803GB, 1/4" Industrial Coupler x 1/8" Female NPT, 3 Series, Automatic Slim Profile, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 2803GB is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 446.00
$ 446.00 - $ 446.00
$ 446.00
$ 356.00
$ 356.00 - $ 356.00
$ 356.00
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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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$ 598.00
$ 598.00 - $ 598.00
$ 598.00
$ 479.00
$ 479.00 - $ 479.00
$ 479.00

Foster SLSD13-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSD13-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the...

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$ 598.00
$ 598.00 - $ 598.00
$ 598.00
$ 479.00
$ 479.00 - $ 479.00
$ 479.00
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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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$ 569.00
$ 569.00 - $ 569.00
$ 569.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00

Foster SLSD11-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSD11-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the...

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$ 569.00
$ 569.00 - $ 569.00
$ 569.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00
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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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$ 558.00
$ 558.00 - $ 558.00
$ 558.00
$ 447.00
$ 447.00 - $ 447.00
$ 447.00

Foster SLSD9-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSD9-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 558.00
$ 558.00 - $ 558.00
$ 558.00
$ 447.00
$ 447.00 - $ 447.00
$ 447.00
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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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$ 551.00
$ 551.00 - $ 551.00
$ 551.00
$ 441.00
$ 441.00 - $ 441.00
$ 441.00

Foster SLSD7-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSD7-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 551.00
$ 551.00 - $ 551.00
$ 551.00
$ 441.00
$ 441.00 - $ 441.00
$ 441.00
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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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$ 759.00
$ 759.00 - $ 759.00
$ 759.00
$ 609.00
$ 609.00 - $ 609.00
$ 609.00

Foster SLSC7-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 5/16" ID x 5/8" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSC7-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 759.00
$ 759.00 - $ 759.00
$ 759.00
$ 609.00
$ 609.00 - $ 609.00
$ 609.00
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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 %
$ 759.00
$ 759.00 - $ 759.00
$ 759.00
$ 609.00
$ 609.00 - $ 609.00
$ 609.00

Foster SLSC5-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 5/16" ID x 9/16" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSC5-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 759.00
$ 759.00 - $ 759.00
$ 759.00
$ 609.00
$ 609.00 - $ 609.00
$ 609.00
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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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$ 576.00
$ 576.00 - $ 576.00
$ 576.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00

Foster SLSB7-3W, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 5/8" OD, 3 Series, Automatic Sleeve Lock, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSB7-3W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — ...

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$ 576.00
$ 576.00 - $ 576.00
$ 576.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00
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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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$ 518.00
$ 518.00 - $ 518.00
$ 518.00
$ 416.00
$ 416.00 - $ 416.00
$ 416.00

Foster SLSB7-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 5/8" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSB7-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 518.00
$ 518.00 - $ 518.00
$ 518.00
$ 416.00
$ 416.00 - $ 416.00
$ 416.00
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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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$ 536.00
$ 536.00 - $ 536.00
$ 536.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00

Foster SLSB5-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 9/16" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSB5-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 536.00
$ 536.00 - $ 536.00
$ 536.00
$ 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
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$ 525.00
$ 525.00 - $ 525.00
$ 525.00
$ 420.00
$ 420.00 - $ 420.00
$ 420.00

Foster SLSB3-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 1/2" OD, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SLSB3-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 525.00
$ 525.00 - $ 525.00
$ 525.00
$ 420.00
$ 420.00 - $ 420.00
$ 420.00
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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 %
$ 536.00
$ 536.00 - $ 536.00
$ 536.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00

Foster FMSD13-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSD13-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the...

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$ 536.00
$ 536.00 - $ 536.00
$ 536.00
$ 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 %
$ 505.00
$ 505.00 - $ 505.00
$ 505.00
$ 404.00
$ 404.00 - $ 404.00
$ 404.00

Foster FMSD11-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSD11-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the...

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$ 505.00
$ 505.00 - $ 505.00
$ 505.00
$ 404.00
$ 404.00 - $ 404.00
$ 404.00
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 %
$ 494.00
$ 494.00 - $ 494.00
$ 494.00
$ 395.00
$ 395.00 - $ 395.00
$ 395.00

Foster FMSD9-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSD9-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 494.00
$ 494.00 - $ 494.00
$ 494.00
$ 395.00
$ 395.00 - $ 395.00
$ 395.00
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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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$ 487.00
$ 487.00 - $ 487.00
$ 487.00
$ 390.00
$ 390.00 - $ 390.00
$ 390.00

Foster FMSD7-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSD7-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 487.00
$ 487.00 - $ 487.00
$ 487.00
$ 390.00
$ 390.00 - $ 390.00
$ 390.00
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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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$ 697.00
$ 697.00 - $ 697.00
$ 697.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00

Foster FMSC7-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 5/16" ID x 5/8" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSC7-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 697.00
$ 697.00 - $ 697.00
$ 697.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
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 %
$ 697.00
$ 697.00 - $ 697.00
$ 697.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00

Foster FMSC5-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 5/16" ID x 9/16" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSC5-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 697.00
$ 697.00 - $ 697.00
$ 697.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
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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$ 456.00
$ 456.00 - $ 456.00
$ 456.00
$ 364.00
$ 364.00 - $ 364.00
$ 364.00

Foster FMSB7-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 5/8" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSB7-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 456.00
$ 456.00 - $ 456.00
$ 456.00
$ 364.00
$ 364.00 - $ 364.00
$ 364.00
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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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$ 470.00
$ 470.00 - $ 470.00
$ 470.00
$ 376.00
$ 376.00 - $ 376.00
$ 376.00

Foster FMSB5-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 9/16" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSB5-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 470.00
$ 470.00 - $ 470.00
$ 470.00
$ 376.00
$ 376.00 - $ 376.00
$ 376.00
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