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 %
$ 8.49
$ 8.49 - $ 8.49
$ 8.49
$ 6.79
$ 6.79 - $ 6.79
$ 6.79

Foster TF41, 3/8" Tru-Flate Plug x 1/4" Female NPT, TF4 Series, Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF41 is a steel 3/8" plug from the Foster TF4 S...

View full details
$ 8.49
$ 8.49 - $ 8.49
$ 8.49
$ 6.79
$ 6.79 - $ 6.79
$ 6.79
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 %
$ 31.19
$ 31.19 - $ 31.19
$ 31.19
$ 24.99
$ 24.99 - $ 24.99
$ 24.99

Foster TF4004, 3/8" Tru-Flate Coupler x 1/4" Female NPT, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF4004 is a brass and steel 3/8" coupler from t...

View full details
$ 31.19
$ 31.19 - $ 31.19
$ 31.19
$ 24.99
$ 24.99 - $ 24.99
$ 24.99
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 %
$ 5.79
$ 5.79 - $ 5.79
$ 5.79
$ 4.69
$ 4.69 - $ 4.69
$ 4.69

Foster TF40, 3/8" Tru-Flate Plug x 1/4" Male NPT, TF4 Series, Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF40 is a steel 3/8" plug from the Foster TF4 S...

View full details
$ 5.79
$ 5.79 - $ 5.79
$ 5.79
$ 4.69
$ 4.69 - $ 4.69
$ 4.69
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 %
$ 36.99
$ 36.99 - $ 36.99
$ 36.99
$ 29.59
$ 29.59 - $ 29.59
$ 29.59

Foster TF1814, 3/8" Tru-Flate Coupler x Push-On Hose Stem, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF1814 is a brass and steel 3/8" coupler from t...

View full details
$ 36.99
$ 36.99 - $ 36.99
$ 36.99
$ 29.59
$ 29.59 - $ 29.59
$ 29.59
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 %
$ 34.39
$ 34.39 - $ 34.39
$ 34.39
$ 27.49
$ 27.49 - $ 27.49
$ 27.49

Foster TF1714, 3/8" Tru-Flate Coupler x Push-On Hose Stem, TF4 Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF1714 is a brass and steel 3/8" coupler from t...

View full details
$ 34.39
$ 34.39 - $ 34.39
$ 34.39
$ 27.49
$ 27.49 - $ 27.49
$ 27.49
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 %
$ 26.09
$ 26.09 - $ 26.09
$ 26.09
$ 20.89
$ 20.89 - $ 20.89
$ 20.89

Foster TFSD9, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSD9 is a brass and steel 1/4" coupler from th...

View full details
$ 26.09
$ 26.09 - $ 26.09
$ 26.09
$ 20.89
$ 20.89 - $ 20.89
$ 20.89
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 %
$ 25.39
$ 25.39 - $ 25.39
$ 25.39
$ 20.29
$ 20.29 - $ 20.29
$ 20.29

Foster TFSD7, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSD7 is a brass and steel 1/4" coupler from th...

View full details
$ 25.39
$ 25.39 - $ 25.39
$ 25.39
$ 20.29
$ 20.29 - $ 20.29
$ 20.29
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 %
$ 26.89
$ 26.89 - $ 26.89
$ 26.89
$ 21.49
$ 21.49 - $ 21.49
$ 21.49

Foster TFSD13, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSD13 is a brass and steel 1/4" coupler from t...

View full details
$ 26.89
$ 26.89 - $ 26.89
$ 26.89
$ 21.49
$ 21.49 - $ 21.49
$ 21.49
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 %
$ 26.69
$ 26.69 - $ 26.69
$ 26.69
$ 21.39
$ 21.39 - $ 21.39
$ 21.39

Foster TFSD11, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSD11 is a brass and steel 1/4" coupler from t...

View full details
$ 26.69
$ 26.69 - $ 26.69
$ 26.69
$ 21.39
$ 21.39 - $ 21.39
$ 21.39
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 %
$ 35.99
$ 35.99 - $ 35.99
$ 35.99
$ 28.79
$ 28.79 - $ 28.79
$ 28.79

Foster TFSC7, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSC7 is a brass and steel 1/4" coupler from th...

View full details
$ 35.99
$ 35.99 - $ 35.99
$ 35.99
$ 28.79
$ 28.79 - $ 28.79
$ 28.79
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 %
$ 35.59
$ 35.59 - $ 35.59
$ 35.59
$ 28.39
$ 28.39 - $ 28.39
$ 28.39

Foster TFSC5, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSC5 is a brass and steel 1/4" coupler from th...

View full details
$ 35.59
$ 35.59 - $ 35.59
$ 35.59
$ 28.39
$ 28.39 - $ 28.39
$ 28.39
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 %
$ 25.39
$ 25.39 - $ 25.39
$ 25.39
$ 20.29
$ 20.29 - $ 20.29
$ 20.29

Foster TFSB7, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSB7 is a brass and steel 1/4" coupler from th...

View full details
$ 25.39
$ 25.39 - $ 25.39
$ 25.39
$ 20.29
$ 20.29 - $ 20.29
$ 20.29
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 %
$ 24.79
$ 24.79 - $ 24.79
$ 24.79
$ 19.89
$ 19.89 - $ 19.89
$ 19.89

Foster TFSB5, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSB5 is a brass and steel 1/4" coupler from th...

View full details
$ 24.79
$ 24.79 - $ 24.79
$ 24.79
$ 19.89
$ 19.89 - $ 19.89
$ 19.89
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 %
$ 23.99
$ 23.99 - $ 23.99
$ 23.99
$ 19.19
$ 19.19 - $ 19.19
$ 19.19

Foster TFSB3, 1/4" Tru-Flate Coupler x Reusable Hose Clamp Fitting, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TFSB3 is a brass and steel 1/4" coupler from th...

View full details
$ 23.99
$ 23.99 - $ 23.99
$ 23.99
$ 19.19
$ 19.19 - $ 19.19
$ 19.19
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 %
$ 6.99
$ 6.99 - $ 6.99
$ 6.99
$ 5.59
$ 5.59 - $ 5.59
$ 5.59

Foster TF71, 1/4" Tru-Flate Plug x 1/4" Hose ID, TF Series, Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF71 is a steel 1/4" plug from the Foster TF Se...

View full details
$ 6.99
$ 6.99 - $ 6.99
$ 6.99
$ 5.59
$ 5.59 - $ 5.59
$ 5.59
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 %
$ 8.19
$ 8.19 - $ 8.19
$ 8.19
$ 6.59
$ 6.59 - $ 6.59
$ 6.59

Foster TF51, 1/4" Tru-Flate Plug x 1/4" Push-On Hose Stem, TF Series, Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF51 is a steel 1/4" plug from the Foster TF Se...

View full details
$ 8.19
$ 8.19 - $ 8.19
$ 8.19
$ 6.59
$ 6.59 - $ 6.59
$ 6.59
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 %
$ 20.09
$ 20.09 - $ 20.09
$ 20.09
$ 16.09
$ 16.09 - $ 16.09
$ 16.09

Foster TF3703, 1/4" Tru-Flate Coupler x 3/8" Hose ID, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF3703 is a brass and steel 1/4" coupler from t...

View full details
$ 20.09
$ 20.09 - $ 20.09
$ 20.09
$ 16.09
$ 16.09 - $ 16.09
$ 16.09
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 %
$ 20.29
$ 20.29 - $ 20.29
$ 20.29
$ 16.19
$ 16.19 - $ 16.19
$ 16.19

Foster TF3653, 1/4" Tru-Flate Coupler x 1/4" Hose ID, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF3653 is a brass and steel 1/4" coupler from t...

View full details
$ 20.29
$ 20.29 - $ 20.29
$ 20.29
$ 16.19
$ 16.19 - $ 16.19
$ 16.19
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 %
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79

Foster TF3603, 1/4" Tru-Flate Coupler x 1/4" Hose ID, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF3603 is a brass and steel 1/4" coupler from t...

View full details
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79
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 %
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79

Foster TF3303, 1/4" Tru-Flate Coupler x 3/8" Male NPT, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF3303 is a brass and steel 1/4" coupler from t...

View full details
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79
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 %
$ 18.89
$ 18.89 - $ 18.89
$ 18.89
$ 15.09
$ 15.09 - $ 15.09
$ 15.09

Foster TF3203, 1/4" Tru-Flate Coupler x 3/8" Female NPT, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF3203 is a brass and steel 1/4" coupler from t...

View full details
$ 18.89
$ 18.89 - $ 18.89
$ 18.89
$ 15.09
$ 15.09 - $ 15.09
$ 15.09
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 %
$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.19
$ 14.19 - $ 14.19
$ 14.19

Foster TF3103, 1/4" Tru-Flate Coupler x 1/4" Male NPT, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF3103 is a brass and steel 1/4" coupler from t...

View full details
$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.19
$ 14.19 - $ 14.19
$ 14.19
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 %
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79

Foster TF3003, 1/4" Tru-Flate Coupler x 1/4" Female NPT, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF3003 is a brass and steel 1/4" coupler from t...

View full details
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79
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 %
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79

Foster TF2903, 1/4" Tru-Flate Coupler x 1/8" Male NPT, TF Series, Automatic, Brass and Steel

Fast, high-flow air connections that interchange with the Tru-Flate (automotive) design. The Foster TF2903 is a brass and steel 1/4" coupler from t...

View full details
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79
Save 20% Save %

Request a Quote

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