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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 %
$ 387.00
$ 387.00 - $ 387.00
$ 387.00
$ 309.00
$ 309.00 - $ 309.00
$ 309.00

Foster 54-5GB, 1/2" Industrial Plug x 1/2" Male NPT, 5 Series, Ball Check, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 54-5GB is a Brass 1/2" industrial plug from the Foster 5 Series ...

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$ 387.00
$ 387.00 - $ 387.00
$ 387.00
$ 309.00
$ 309.00 - $ 309.00
$ 309.00
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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 %
$ 128.00
$ 128.00 - $ 128.00
$ 128.00
$ 102.00
$ 102.00 - $ 102.00
$ 102.00

Foster 54-5, 1/2" Industrial Plug x 1/2" Male NPT, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 54-5 is a Steel 1/2" industrial plug from the Foster 5 Series — ...

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$ 128.00
$ 128.00 - $ 128.00
$ 128.00
$ 102.00
$ 102.00 - $ 102.00
$ 102.00
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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 %
$ 275.00
$ 275.00 - $ 275.00
$ 275.00
$ 219.00
$ 219.00 - $ 219.00
$ 219.00

Foster 52-5B, 1/2" Industrial Plug x 3/8" Male NPT, 5 Series, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 52-5B is a Brass 1/2" industrial plug from the Foster 5 Series —...

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$ 275.00
$ 275.00 - $ 275.00
$ 275.00
$ 219.00
$ 219.00 - $ 219.00
$ 219.00
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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 %
$ 119.00
$ 119.00 - $ 119.00
$ 119.00
$ 95.00
$ 95.00 - $ 95.00
$ 95.00

Foster 52-5, 1/2" Industrial Plug x 3/8" Male NPT, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 52-5 is a Steel 1/2" industrial plug from the Foster 5 Series — ...

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$ 119.00
$ 119.00 - $ 119.00
$ 119.00
$ 95.00
$ 95.00 - $ 95.00
$ 95.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 19% Save %
$ 99.00
$ 99.00 - $ 99.00
$ 99.00
$ 80.00
$ 80.00 - $ 80.00
$ 80.00

Foster 50-5, 1/2" Industrial Plug x 1/4" Male NPT, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 50-5 is a Steel 1/2" industrial plug from the Foster 5 Series — ...

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$ 99.00
$ 99.00 - $ 99.00
$ 99.00
$ 80.00
$ 80.00 - $ 80.00
$ 80.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 1,257.00
$ 1,257.00 - $ 1,257.00
$ 1,257.00
$ 1,006.00
$ 1,006.00 - $ 1,006.00
$ 1,006.00

Foster SLSP19-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 1" OD, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SLSP19-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,257.00
$ 1,257.00 - $ 1,257.00
$ 1,257.00
$ 1,006.00
$ 1,006.00 - $ 1,006.00
$ 1,006.00
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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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$ 1,162.00
$ 1,162.00 - $ 1,162.00
$ 1,162.00
$ 930.00
$ 930.00 - $ 930.00
$ 930.00

Foster FMSP19-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 1" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP19-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,162.00
$ 1,162.00 - $ 1,162.00
$ 1,162.00
$ 930.00
$ 930.00 - $ 930.00
$ 930.00
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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 %
$ 1,217.00
$ 1,217.00 - $ 1,217.00
$ 1,217.00
$ 974.00
$ 974.00 - $ 974.00
$ 974.00

Foster SLSP17-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 15/16" OD, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SLSP17-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,217.00
$ 1,217.00 - $ 1,217.00
$ 1,217.00
$ 974.00
$ 974.00 - $ 974.00
$ 974.00
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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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$ 1,125.00
$ 1,125.00 - $ 1,125.00
$ 1,125.00
$ 901.00
$ 901.00 - $ 901.00
$ 901.00

Foster FMSP17-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 15/16" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP17-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,125.00
$ 1,125.00 - $ 1,125.00
$ 1,125.00
$ 901.00
$ 901.00 - $ 901.00
$ 901.00
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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 %
$ 1,177.00
$ 1,177.00 - $ 1,177.00
$ 1,177.00
$ 941.00
$ 941.00 - $ 941.00
$ 941.00

Foster SLSP15-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 7/8" OD, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SLSP15-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,177.00
$ 1,177.00 - $ 1,177.00
$ 1,177.00
$ 941.00
$ 941.00 - $ 941.00
$ 941.00
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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 %
$ 1,041.00
$ 1,041.00 - $ 1,041.00
$ 1,041.00
$ 832.00
$ 832.00 - $ 832.00
$ 832.00

Foster FMSP15-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 7/8" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP15-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,041.00
$ 1,041.00 - $ 1,041.00
$ 1,041.00
$ 832.00
$ 832.00 - $ 832.00
$ 832.00
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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 %
$ 1,093.00
$ 1,093.00 - $ 1,093.00
$ 1,093.00
$ 875.00
$ 875.00 - $ 875.00
$ 875.00

Foster FMSP13-5H, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 13/16" OD, 5 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP13-5H is a Brass 1/2" industrial coupler from the Foster 5 S...

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$ 1,093.00
$ 1,093.00 - $ 1,093.00
$ 1,093.00
$ 875.00
$ 875.00 - $ 875.00
$ 875.00
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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 %
$ 1,151.00
$ 1,151.00 - $ 1,151.00
$ 1,151.00
$ 922.00
$ 922.00 - $ 922.00
$ 922.00

Foster SLSP13-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 13/16" OD, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SLSP13-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,151.00
$ 1,151.00 - $ 1,151.00
$ 1,151.00
$ 922.00
$ 922.00 - $ 922.00
$ 922.00
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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 %
$ 1,020.00
$ 1,020.00 - $ 1,020.00
$ 1,020.00
$ 817.00
$ 817.00 - $ 817.00
$ 817.00

Foster FMSP13-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 13/16" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP13-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,020.00
$ 1,020.00 - $ 1,020.00
$ 1,020.00
$ 817.00
$ 817.00 - $ 817.00
$ 817.00
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 %
$ 958.00
$ 958.00 - $ 958.00
$ 958.00
$ 766.00
$ 766.00 - $ 766.00
$ 766.00

Foster SLSD13-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SLSD13-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 958.00
$ 958.00 - $ 958.00
$ 958.00
$ 766.00
$ 766.00 - $ 766.00
$ 766.00
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 %
$ 834.00
$ 834.00 - $ 834.00
$ 834.00
$ 666.00
$ 666.00 - $ 666.00
$ 666.00

Foster FMSD13-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD13-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 834.00
$ 834.00 - $ 834.00
$ 834.00
$ 666.00
$ 666.00 - $ 666.00
$ 666.00
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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$ 942.00
$ 942.00 - $ 942.00
$ 942.00
$ 754.00
$ 754.00 - $ 754.00
$ 754.00

Foster SLSD11-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SLSD11-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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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 %
$ 817.00
$ 817.00 - $ 817.00
$ 817.00
$ 653.00
$ 653.00 - $ 653.00
$ 653.00

Foster FMSD11-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD11-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 817.00
$ 817.00 - $ 817.00
$ 817.00
$ 653.00
$ 653.00 - $ 653.00
$ 653.00
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 %
$ 925.00
$ 925.00 - $ 925.00
$ 925.00
$ 741.00
$ 741.00 - $ 741.00
$ 741.00

Foster SLSD9-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SLSD9-5 is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 925.00
$ 925.00 - $ 925.00
$ 925.00
$ 741.00
$ 741.00 - $ 741.00
$ 741.00
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 %
$ 798.00
$ 798.00 - $ 798.00
$ 798.00
$ 639.00
$ 639.00 - $ 639.00
$ 639.00

Foster FMSD9-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD9-5 is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 798.00
$ 798.00 - $ 798.00
$ 798.00
$ 639.00
$ 639.00 - $ 639.00
$ 639.00
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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$ 865.00
$ 865.00 - $ 865.00
$ 865.00
$ 692.00
$ 692.00 - $ 692.00
$ 692.00

Foster SLSD7-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SLSD7-5 is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 865.00
$ 865.00 - $ 865.00
$ 865.00
$ 692.00
$ 692.00 - $ 692.00
$ 692.00
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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$ 777.00
$ 777.00 - $ 777.00
$ 777.00
$ 622.00
$ 622.00 - $ 622.00
$ 622.00

Foster FMSD7-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD7-5 is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 777.00
$ 777.00 - $ 777.00
$ 777.00
$ 622.00
$ 622.00 - $ 622.00
$ 622.00
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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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$ 875.00
$ 875.00 - $ 875.00
$ 875.00
$ 701.00
$ 701.00 - $ 701.00
$ 701.00

Foster SL5905, 1/2" Industrial Coupler x 3/4" Hose ID, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 875.00
$ 875.00 - $ 875.00
$ 875.00
$ 701.00
$ 701.00 - $ 701.00
$ 701.00
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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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$ 768.00
$ 768.00 - $ 768.00
$ 768.00
$ 615.00
$ 615.00 - $ 615.00
$ 615.00

Foster FM5905, 1/2" Industrial Coupler x 3/4" Hose ID, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 768.00
$ 768.00 - $ 768.00
$ 768.00
$ 615.00
$ 615.00 - $ 615.00
$ 615.00
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