Skip to content
☀️ Take an Additional 10% Off Your Entire Order with code GEARUP10 at checkout.
☀️ Additional 10% Off • GEARUP10

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.

Filters

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 579.00
$ 579.00 - $ 579.00
$ 579.00
$ 463.00
$ 463.00 - $ 463.00
$ 463.00

Foster 310-4604, 3/8" ARO Coupler x 1/4" Hose ID, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4604 is a brass and steel 3/8" coupler from t...

View full details
$ 579.00
$ 579.00 - $ 579.00
$ 579.00
$ 463.00
$ 463.00 - $ 463.00
$ 463.00
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 %
$ 555.00
$ 555.00 - $ 555.00
$ 555.00
$ 444.00
$ 444.00 - $ 444.00
$ 444.00

Foster 310-4504, 3/8" ARO Coupler x 1/2" Male NPT, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4504 is a brass and steel 3/8" coupler from t...

View full details
$ 555.00
$ 555.00 - $ 555.00
$ 555.00
$ 444.00
$ 444.00 - $ 444.00
$ 444.00
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 %
$ 551.00
$ 551.00 - $ 551.00
$ 551.00
$ 440.00
$ 440.00 - $ 440.00
$ 440.00

Foster 310-4404, 3/8" ARO Coupler x 1/2" Female NPT, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4404 is a brass and steel 3/8" coupler from t...

View full details
$ 551.00
$ 551.00 - $ 551.00
$ 551.00
$ 440.00
$ 440.00 - $ 440.00
$ 440.00
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 %
$ 534.00
$ 534.00 - $ 534.00
$ 534.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00

Foster 310-4304, 3/8" ARO Coupler x 3/8" Male NPT, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4304 is a brass and steel 3/8" coupler from t...

View full details
$ 534.00
$ 534.00 - $ 534.00
$ 534.00
$ 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 19% Save %
$ 120.00
$ 120.00 - $ 120.00
$ 120.00
$ 97.00
$ 97.00 - $ 97.00
$ 97.00

Foster 310-43, 3/8" ARO Plug x 3/8" Female NPT, 310 Series, Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-43 is a steel 3/8" plug from the Foster 310 S...

View full details
$ 120.00
$ 120.00 - $ 120.00
$ 120.00
$ 97.00
$ 97.00 - $ 97.00
$ 97.00
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 %
$ 527.00
$ 527.00 - $ 527.00
$ 527.00
$ 423.00
$ 423.00 - $ 423.00
$ 423.00

Foster 310-4204, 3/8" ARO Coupler x 3/8" Female NPT, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4204 is a brass and steel 3/8" coupler from t...

View full details
$ 527.00
$ 527.00 - $ 527.00
$ 527.00
$ 423.00
$ 423.00 - $ 423.00
$ 423.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 22% Save %
$ 92.00
$ 92.00 - $ 92.00
$ 92.00
$ 72.00
$ 72.00 - $ 72.00
$ 72.00

Foster 310-42, 3/8" ARO Plug x 3/8" Male NPT, 310 Series, Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-42 is a steel 3/8" plug from the Foster 310 S...

View full details
$ 92.00
$ 92.00 - $ 92.00
$ 92.00
$ 72.00
$ 72.00 - $ 72.00
$ 72.00
Save 22% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 518.00
$ 518.00 - $ 518.00
$ 518.00
$ 414.00
$ 414.00 - $ 414.00
$ 414.00

Foster 310-4104, 3/8" ARO Coupler x 1/4" Male NPT, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4104 is a brass and steel 3/8" coupler from t...

View full details
$ 518.00
$ 518.00 - $ 518.00
$ 518.00
$ 414.00
$ 414.00 - $ 414.00
$ 414.00
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 %
$ 514.00
$ 514.00 - $ 514.00
$ 514.00
$ 410.00
$ 410.00 - $ 410.00
$ 410.00

Foster 310-4004, 3/8" ARO Coupler x 1/4" Female NPT, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4004 is a brass and steel 3/8" coupler from t...

View full details
$ 514.00
$ 514.00 - $ 514.00
$ 514.00
$ 410.00
$ 410.00 - $ 410.00
$ 410.00
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 %
$ 627.00
$ 627.00 - $ 627.00
$ 627.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00

Foster 310-1814, 3/8" ARO Coupler x 1/2" Push-On Hose Stem, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-1814 is a brass and steel 3/8" coupler from t...

View full details
$ 627.00
$ 627.00 - $ 627.00
$ 627.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00
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 %
$ 615.00
$ 615.00 - $ 615.00
$ 615.00
$ 491.00
$ 491.00 - $ 491.00
$ 491.00

Foster 310-1714, 3/8" ARO Coupler x 3/8" Push-On Hose Stem, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-1714 is a brass and steel 3/8" coupler from t...

View full details
$ 615.00
$ 615.00 - $ 615.00
$ 615.00
$ 491.00
$ 491.00 - $ 491.00
$ 491.00
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 %
$ 303.00
$ 303.00 - $ 303.00
$ 303.00
$ 243.00
$ 243.00 - $ 243.00
$ 243.00

Foster SHD60, 1/2" Schrader Plug x 1/2" Hose ID, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD60 is a steel 1/2" plug from the ...

View full details
$ 303.00
$ 303.00 - $ 303.00
$ 303.00
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
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 %
$ 220.00
$ 220.00 - $ 220.00
$ 220.00
$ 176.00
$ 176.00 - $ 176.00
$ 176.00

Foster SHD59, 1/2" Schrader Plug x 3/8" Hose ID, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD59 is a steel 1/2" plug from the ...

View full details
$ 220.00
$ 220.00 - $ 220.00
$ 220.00
$ 176.00
$ 176.00 - $ 176.00
$ 176.00
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 %
$ 275.00
$ 275.00 - $ 275.00
$ 275.00
$ 220.00
$ 220.00 - $ 220.00
$ 220.00

Foster SHD53, 1/2" Schrader Plug x 3/8" Female NPT, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD53 is a steel 1/2" plug from the ...

View full details
$ 275.00
$ 275.00 - $ 275.00
$ 275.00
$ 220.00
$ 220.00 - $ 220.00
$ 220.00
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 %
$ 194.00
$ 194.00 - $ 194.00
$ 194.00
$ 155.00
$ 155.00 - $ 155.00
$ 155.00

Foster SHD54, 1/2" Schrader Plug x 1/2" Male NPT, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD54 is a steel 1/2" plug from the ...

View full details
$ 194.00
$ 194.00 - $ 194.00
$ 194.00
$ 155.00
$ 155.00 - $ 155.00
$ 155.00
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 %
$ 210.00
$ 210.00 - $ 210.00
$ 210.00
$ 168.00
$ 168.00 - $ 168.00
$ 168.00

Foster SHD52, 1/2" Schrader Plug x 3/8" Male NPT, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD52 is a steel 1/2" plug from the ...

View full details
$ 210.00
$ 210.00 - $ 210.00
$ 210.00
$ 168.00
$ 168.00 - $ 168.00
$ 168.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 175.00
$ 175.00 - $ 175.00
$ 175.00
$ 139.00
$ 139.00 - $ 139.00
$ 139.00

Foster SHD50, 1/2" Schrader Plug x 1/4" Male NPT, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD50 is a steel 1/2" plug from the ...

View full details
$ 175.00
$ 175.00 - $ 175.00
$ 175.00
$ 139.00
$ 139.00 - $ 139.00
$ 139.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 19% Save %
$ 153.00
$ 153.00 - $ 153.00
$ 153.00
$ 124.00
$ 124.00 - $ 124.00
$ 124.00

Foster SHD51, 1/4" Schrader Plug x 1/4" Push-On Hose Stem, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD51 is a steel 1/4" plug from the ...

View full details
$ 153.00
$ 153.00 - $ 153.00
$ 153.00
$ 124.00
$ 124.00 - $ 124.00
$ 124.00
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 %
$ 182.00
$ 182.00 - $ 182.00
$ 182.00
$ 145.00
$ 145.00 - $ 145.00
$ 145.00

Foster SHD17, 1/4" Schrader Plug x 3/8" Hose ID, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD17 is a steel 1/4" plug from the ...

View full details
$ 182.00
$ 182.00 - $ 182.00
$ 182.00
$ 145.00
$ 145.00 - $ 145.00
$ 145.00
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 %
$ 182.00
$ 182.00 - $ 182.00
$ 182.00
$ 145.00
$ 145.00 - $ 145.00
$ 145.00

Foster SHD16, 1/4" Schrader Plug x 1/4" Hose ID, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD16 is a steel 1/4" plug from the ...

View full details
$ 182.00
$ 182.00 - $ 182.00
$ 182.00
$ 145.00
$ 145.00 - $ 145.00
$ 145.00
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 %
$ 220.00
$ 220.00 - $ 220.00
$ 220.00
$ 176.00
$ 176.00 - $ 176.00
$ 176.00

Foster SHD10S/S, 1/4" Schrader Plug x 1/4" Male NPT, SHD Series, 303 Stainless

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD10S/S is a 303 stainless steel 1/...

View full details
$ 220.00
$ 220.00 - $ 220.00
$ 220.00
$ 176.00
$ 176.00 - $ 176.00
$ 176.00
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 %
$ 60.00
$ 60.00 - $ 60.00
$ 60.00
$ 48.00
$ 48.00 - $ 48.00
$ 48.00

Foster SHD10, 1/4" Schrader Plug x 1/4" Male NPT, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD10 is a steel 1/4" plug from the ...

View full details
$ 60.00
$ 60.00 - $ 60.00
$ 60.00
$ 48.00
$ 48.00 - $ 48.00
$ 48.00
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 %
$ 252.00
$ 252.00 - $ 252.00
$ 252.00
$ 203.00
$ 203.00 - $ 203.00
$ 203.00

Foster SHD11S/S, 1/4" Schrader Plug x 1/4" Female NPT, SHD Series, 303 Stainless

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD11S/S is a 303 stainless steel 1/...

View full details
$ 252.00
$ 252.00 - $ 252.00
$ 252.00
$ 203.00
$ 203.00 - $ 203.00
$ 203.00
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 %
$ 370.00
$ 370.00 - $ 370.00
$ 370.00
$ 296.00
$ 296.00 - $ 296.00
$ 296.00

Foster SHD12, 1/4" Schrader Plug x 1/8" Male NPT, SHD Series, Steel

Fast, one-handed air connections that interchange with Schrader Standard & Heavy Duty couplers. The Foster SHD12 is a steel 1/4" plug from the ...

View full details
$ 370.00
$ 370.00 - $ 370.00
$ 370.00
$ 296.00
$ 296.00 - $ 296.00
$ 296.00
Save 20% Save %

Request a Quote

Bulk and dealer pricing. Tell us what you need and we’ll reply within one business day.