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 %
$ 694.00
$ 694.00 - $ 694.00
$ 694.00
$ 555.00
$ 555.00 - $ 555.00
$ 555.00

Foster LN1513, 1/4" Lincoln Long Nose Coupler x Push-On Hose Stem, LN Series, Automatic, Brass and Steel

Secure, high-flow air connections that interchange with Lincoln Long Nose couplers. The Foster LN1513 is a brass and steel 1/4" coupler from the Fo...

View full details
$ 694.00
$ 694.00 - $ 694.00
$ 694.00
$ 555.00
$ 555.00 - $ 555.00
$ 555.00
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 %
$ 226.00
$ 226.00 - $ 226.00
$ 226.00
$ 180.00
$ 180.00 - $ 180.00
$ 180.00

Foster LN13, 1/4" Lincoln Long Nose Plug x 1/8" Female NPT, LN Series, Steel

Secure, high-flow air connections that interchange with Lincoln Long Nose couplers. The Foster LN13 is a steel 1/4" plug from the Foster LN Series,...

View full details
$ 226.00
$ 226.00 - $ 226.00
$ 226.00
$ 180.00
$ 180.00 - $ 180.00
$ 180.00
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 %
$ 213.00
$ 213.00 - $ 213.00
$ 213.00
$ 171.00
$ 171.00 - $ 171.00
$ 171.00

Foster LN12, 1/4" Lincoln Long Nose Plug x 1/8" Male NPT, LN Series, Steel

Secure, high-flow air connections that interchange with Lincoln Long Nose couplers. The Foster LN12 is a steel 1/4" plug from the Foster LN Series,...

View full details
$ 213.00
$ 213.00 - $ 213.00
$ 213.00
$ 171.00
$ 171.00 - $ 171.00
$ 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 %
$ 250.00
$ 250.00 - $ 250.00
$ 250.00
$ 199.00
$ 199.00 - $ 199.00
$ 199.00

Foster LN11, 1/4" Lincoln Long Nose Plug x 1/4" Female NPT, LN Series, Steel

Secure, high-flow air connections that interchange with Lincoln Long Nose couplers. The Foster LN11 is a steel 1/4" plug from the Foster LN Series,...

View full details
$ 250.00
$ 250.00 - $ 250.00
$ 250.00
$ 199.00
$ 199.00 - $ 199.00
$ 199.00
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 %
$ 106.00
$ 106.00 - $ 106.00
$ 106.00
$ 85.00
$ 85.00 - $ 85.00
$ 85.00

Foster LN10, 1/4" Lincoln Long Nose Plug x 1/4" Male NPT, LN Series, Steel

Secure, high-flow air connections that interchange with Lincoln Long Nose couplers. The Foster LN10 is a steel 1/4" plug from the Foster LN Series,...

View full details
$ 106.00
$ 106.00 - $ 106.00
$ 106.00
$ 85.00
$ 85.00 - $ 85.00
$ 85.00
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 %
$ 725.00
$ 725.00 - $ 725.00
$ 725.00
$ 579.00
$ 579.00 - $ 579.00
$ 579.00

Foster TFSD94, 3/8" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSD94 is a brass and steel 3/8" coupler from t...

View full details
$ 725.00
$ 725.00 - $ 725.00
$ 725.00
$ 579.00
$ 579.00 - $ 579.00
$ 579.00
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 %
$ 720.00
$ 720.00 - $ 720.00
$ 720.00
$ 578.00
$ 578.00 - $ 578.00
$ 578.00

Foster TFSD74, 3/8" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSD74 is a brass and steel 3/8" coupler from t...

View full details
$ 720.00
$ 720.00 - $ 720.00
$ 720.00
$ 578.00
$ 578.00 - $ 578.00
$ 578.00
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 %
$ 757.00
$ 757.00 - $ 757.00
$ 757.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00

Foster TFSD134, 3/8" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSD134 is a brass and steel 3/8" coupler from ...

View full details
$ 757.00
$ 757.00 - $ 757.00
$ 757.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00
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 %
$ 717.00
$ 717.00 - $ 717.00
$ 717.00
$ 574.00
$ 574.00 - $ 574.00
$ 574.00

Foster TFSD114, 3/8" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSD114 is a brass and steel 3/8" coupler from ...

View full details
$ 717.00
$ 717.00 - $ 717.00
$ 717.00
$ 574.00
$ 574.00 - $ 574.00
$ 574.00
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 %
$ 720.00
$ 720.00 - $ 720.00
$ 720.00
$ 578.00
$ 578.00 - $ 578.00
$ 578.00

Foster TFSB74, 3/8" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSB74 is a brass and steel 3/8" coupler from t...

View full details
$ 720.00
$ 720.00 - $ 720.00
$ 720.00
$ 578.00
$ 578.00 - $ 578.00
$ 578.00
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 %
$ 717.00
$ 717.00 - $ 717.00
$ 717.00
$ 574.00
$ 574.00 - $ 574.00
$ 574.00

Foster TFSB54, 3/8" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSB54 is a brass and steel 3/8" coupler from t...

View full details
$ 717.00
$ 717.00 - $ 717.00
$ 717.00
$ 574.00
$ 574.00 - $ 574.00
$ 574.00
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 %
$ 713.00
$ 713.00 - $ 713.00
$ 713.00
$ 571.00
$ 571.00 - $ 571.00
$ 571.00

Foster TFSB34, 3/8" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSB34 is a brass and steel 3/8" coupler from t...

View full details
$ 713.00
$ 713.00 - $ 713.00
$ 713.00
$ 571.00
$ 571.00 - $ 571.00
$ 571.00
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 %
$ 641.00
$ 641.00 - $ 641.00
$ 641.00
$ 512.00
$ 512.00 - $ 512.00
$ 512.00

Foster TF4904, 3/8" Tru-Flate Coupler x 1/2" Hose ID, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4904 is a brass and steel 3/8" coupler from t...

View full details
$ 641.00
$ 641.00 - $ 641.00
$ 641.00
$ 512.00
$ 512.00 - $ 512.00
$ 512.00
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 %
$ 606.00
$ 606.00 - $ 606.00
$ 606.00
$ 484.00
$ 484.00 - $ 484.00
$ 484.00

Foster TF4804, 3/8" Tru-Flate Coupler x 3/8" Hose ID, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4804 is a brass and steel 3/8" coupler from t...

View full details
$ 606.00
$ 606.00 - $ 606.00
$ 606.00
$ 484.00
$ 484.00 - $ 484.00
$ 484.00
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 %
$ 583.00
$ 583.00 - $ 583.00
$ 583.00
$ 467.00
$ 467.00 - $ 467.00
$ 467.00

Foster TF4604, 3/8" Tru-Flate Coupler x 1/4" Hose ID, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4604 is a brass and steel 3/8" coupler from t...

View full details
$ 583.00
$ 583.00 - $ 583.00
$ 583.00
$ 467.00
$ 467.00 - $ 467.00
$ 467.00
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 %
$ 185.00
$ 185.00 - $ 185.00
$ 185.00
$ 148.00
$ 148.00 - $ 148.00
$ 148.00

Foster TF48, 3/8" Tru-Flate Plug x 3/8" Hose ID, TF4 Series, Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF48 is a steel 3/8" plug from the Foster TF4 S...

View full details
$ 185.00
$ 185.00 - $ 185.00
$ 185.00
$ 148.00
$ 148.00 - $ 148.00
$ 148.00
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 %
$ 637.00
$ 637.00 - $ 637.00
$ 637.00
$ 511.00
$ 511.00 - $ 511.00
$ 511.00

Foster TF4704, 3/8" Tru-Flate Coupler x 5/16" Hose ID, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4704 is a brass and steel 3/8" coupler from t...

View full details
$ 637.00
$ 637.00 - $ 637.00
$ 637.00
$ 511.00
$ 511.00 - $ 511.00
$ 511.00
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 %
$ 604.00
$ 604.00 - $ 604.00
$ 604.00
$ 483.00
$ 483.00 - $ 483.00
$ 483.00

Foster TF4504, 3/8" Tru-Flate Coupler x 1/2" Male NPT, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4504 is a brass and steel 3/8" coupler from t...

View full details
$ 604.00
$ 604.00 - $ 604.00
$ 604.00
$ 483.00
$ 483.00 - $ 483.00
$ 483.00
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 %
$ 604.00
$ 604.00 - $ 604.00
$ 604.00
$ 483.00
$ 483.00 - $ 483.00
$ 483.00

Foster TF4404, 3/8" Tru-Flate Coupler x 1/2" Female NPT, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4404 is a brass and steel 3/8" coupler from t...

View full details
$ 604.00
$ 604.00 - $ 604.00
$ 604.00
$ 483.00
$ 483.00 - $ 483.00
$ 483.00
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 %
$ 579.00
$ 579.00 - $ 579.00
$ 579.00
$ 463.00
$ 463.00 - $ 463.00
$ 463.00

Foster TF4304, 3/8" Tru-Flate Coupler x 3/8" Male NPT, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4304 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 %
$ 139.00
$ 139.00 - $ 139.00
$ 139.00
$ 111.00
$ 111.00 - $ 111.00
$ 111.00

Foster TF43, 3/8" Tru-Flate Plug x 3/8" Female NPT, TF4 Series, Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF43 is a steel 3/8" plug from the Foster TF4 S...

View full details
$ 139.00
$ 139.00 - $ 139.00
$ 139.00
$ 111.00
$ 111.00 - $ 111.00
$ 111.00
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 %
$ 579.00
$ 579.00 - $ 579.00
$ 579.00
$ 463.00
$ 463.00 - $ 463.00
$ 463.00

Foster TF4204, 3/8" Tru-Flate Coupler x 3/8" Female NPT, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4204 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 %
$ 136.00
$ 136.00 - $ 136.00
$ 136.00
$ 109.00
$ 109.00 - $ 109.00
$ 109.00

Foster TF42, 3/8" Tru-Flate Plug x 3/8" Male NPT, TF4 Series, Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF42 is a steel 3/8" plug from the Foster TF4 S...

View full details
$ 136.00
$ 136.00 - $ 136.00
$ 136.00
$ 109.00
$ 109.00 - $ 109.00
$ 109.00
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 %
$ 549.00
$ 549.00 - $ 549.00
$ 549.00
$ 440.00
$ 440.00 - $ 440.00
$ 440.00

Foster TF4104, 3/8" Tru-Flate Coupler x 1/4" Male NPT, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4104 is a brass and steel 3/8" coupler from t...

View full details
$ 549.00
$ 549.00 - $ 549.00
$ 549.00
$ 440.00
$ 440.00 - $ 440.00
$ 440.00
Save 20% Save %

Request a Quote

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