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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 %
$ 349.00
$ 349.00 - $ 349.00
$ 349.00
$ 278.00
$ 278.00 - $ 278.00
$ 278.00

Foster 3703W, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3703W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 349.00
$ 349.00 - $ 349.00
$ 349.00
$ 278.00
$ 278.00 - $ 278.00
$ 278.00
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 %
$ 1,273.00
$ 1,273.00 - $ 1,273.00
$ 1,273.00
$ 1,018.00
$ 1,018.00 - $ 1,018.00
$ 1,018.00

Foster BL3703S/S, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Ball Lock, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3703S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Ser...

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$ 1,273.00
$ 1,273.00 - $ 1,273.00
$ 1,273.00
$ 1,018.00
$ 1,018.00 - $ 1,018.00
$ 1,018.00
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 %
$ 1,212.00
$ 1,212.00 - $ 1,212.00
$ 1,212.00
$ 970.00
$ 970.00 - $ 970.00
$ 970.00

Foster 3703S/S, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3703S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Serie...

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$ 1,212.00
$ 1,212.00 - $ 1,212.00
$ 1,212.00
$ 970.00
$ 970.00 - $ 970.00
$ 970.00
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 %
$ 345.00
$ 345.00 - $ 345.00
$ 345.00
$ 277.00
$ 277.00 - $ 277.00
$ 277.00

Foster 3703S, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Steam/EPDM, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3703S is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 345.00
$ 345.00 - $ 345.00
$ 345.00
$ 277.00
$ 277.00 - $ 277.00
$ 277.00
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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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$ 312.00
$ 312.00 - $ 312.00
$ 312.00
$ 250.00
$ 250.00 - $ 250.00
$ 250.00

Foster BL3703, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3703 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 312.00
$ 312.00 - $ 312.00
$ 312.00
$ 250.00
$ 250.00 - $ 250.00
$ 250.00
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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 %
$ 277.00
$ 277.00 - $ 277.00
$ 277.00
$ 222.00
$ 222.00 - $ 222.00
$ 222.00

Foster 3703, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3703 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 277.00
$ 277.00 - $ 277.00
$ 277.00
$ 222.00
$ 222.00 - $ 222.00
$ 222.00
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 %
$ 308.00
$ 308.00 - $ 308.00
$ 308.00
$ 247.00
$ 247.00 - $ 247.00
$ 247.00

Foster BL3653, 1/4" Industrial Coupler x 5/16" Hose ID, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3653 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 308.00
$ 308.00 - $ 308.00
$ 308.00
$ 247.00
$ 247.00 - $ 247.00
$ 247.00
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 %
$ 1,187.00
$ 1,187.00 - $ 1,187.00
$ 1,187.00
$ 949.00
$ 949.00 - $ 949.00
$ 949.00

Foster 3603S/S, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3603S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Serie...

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$ 1,187.00
$ 1,187.00 - $ 1,187.00
$ 1,187.00
$ 949.00
$ 949.00 - $ 949.00
$ 949.00
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 %
$ 301.00
$ 301.00 - $ 301.00
$ 301.00
$ 242.00
$ 242.00 - $ 242.00
$ 242.00

Foster 3653, 1/4" Industrial Coupler x 5/16" Hose ID, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3653 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 301.00
$ 301.00 - $ 301.00
$ 301.00
$ 242.00
$ 242.00 - $ 242.00
$ 242.00
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 %
$ 312.00
$ 312.00 - $ 312.00
$ 312.00
$ 250.00
$ 250.00 - $ 250.00
$ 250.00

Foster 3603W, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3603W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 312.00
$ 312.00 - $ 312.00
$ 312.00
$ 250.00
$ 250.00 - $ 250.00
$ 250.00
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 %
$ 321.00
$ 321.00 - $ 321.00
$ 321.00
$ 257.00
$ 257.00 - $ 257.00
$ 257.00

Foster 3603S, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Steam/EPDM, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3603S is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 321.00
$ 321.00 - $ 321.00
$ 321.00
$ 257.00
$ 257.00 - $ 257.00
$ 257.00
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 %
$ 287.00
$ 287.00 - $ 287.00
$ 287.00
$ 229.00
$ 229.00 - $ 229.00
$ 229.00

Foster BL3603, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3603 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 287.00
$ 287.00 - $ 287.00
$ 287.00
$ 229.00
$ 229.00 - $ 229.00
$ 229.00
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 %
$ 254.00
$ 254.00 - $ 254.00
$ 254.00
$ 203.00
$ 203.00 - $ 203.00
$ 203.00

Foster 3603, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3603 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 254.00
$ 254.00 - $ 254.00
$ 254.00
$ 203.00
$ 203.00 - $ 203.00
$ 203.00
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 %
$ 356.00
$ 356.00 - $ 356.00
$ 356.00
$ 284.00
$ 284.00 - $ 284.00
$ 284.00

Foster 1713W, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 1713W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 356.00
$ 356.00 - $ 356.00
$ 356.00
$ 284.00
$ 284.00 - $ 284.00
$ 284.00
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 %
$ 328.00
$ 328.00 - $ 328.00
$ 328.00
$ 263.00
$ 263.00 - $ 263.00
$ 263.00

Foster BL1713, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL1713 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 328.00
$ 328.00 - $ 328.00
$ 328.00
$ 263.00
$ 263.00 - $ 263.00
$ 263.00
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 %
$ 286.00
$ 286.00 - $ 286.00
$ 286.00
$ 227.00
$ 227.00 - $ 227.00
$ 227.00

Foster 1713, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 1713 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 286.00
$ 286.00 - $ 286.00
$ 286.00
$ 227.00
$ 227.00 - $ 227.00
$ 227.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 358.00
$ 358.00 - $ 358.00
$ 358.00
$ 287.00
$ 287.00 - $ 287.00
$ 287.00

Foster 1513W, 1/4" Industrial Coupler x 1/4" Push-On Hose Stem, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 1513W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 358.00
$ 358.00 - $ 358.00
$ 358.00
$ 287.00
$ 287.00 - $ 287.00
$ 287.00
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 %
$ 321.00
$ 321.00 - $ 321.00
$ 321.00
$ 257.00
$ 257.00 - $ 257.00
$ 257.00

Foster BL1513, 1/4" Industrial Coupler x 1/4" Push-On Hose Stem, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL1513 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 321.00
$ 321.00 - $ 321.00
$ 321.00
$ 257.00
$ 257.00 - $ 257.00
$ 257.00
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 %
$ 282.00
$ 282.00 - $ 282.00
$ 282.00
$ 226.00
$ 226.00 - $ 226.00
$ 226.00

Foster 1513, 1/4" Industrial Coupler x 1/4" Push-On Hose Stem, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 1513 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 282.00
$ 282.00 - $ 282.00
$ 282.00
$ 226.00
$ 226.00 - $ 226.00
$ 226.00
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 %
$ 330.00
$ 330.00 - $ 330.00
$ 330.00
$ 264.00
$ 264.00 - $ 264.00
$ 264.00

Foster 3303W, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3303W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 330.00
$ 330.00 - $ 330.00
$ 330.00
$ 264.00
$ 264.00 - $ 264.00
$ 264.00
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 %
$ 1,247.00
$ 1,247.00 - $ 1,247.00
$ 1,247.00
$ 997.00
$ 997.00 - $ 997.00
$ 997.00

Foster BL3303S/S, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Ball Lock, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3303S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Ser...

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$ 1,247.00
$ 1,247.00 - $ 1,247.00
$ 1,247.00
$ 997.00
$ 997.00 - $ 997.00
$ 997.00
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 %
$ 1,161.00
$ 1,161.00 - $ 1,161.00
$ 1,161.00
$ 928.00
$ 928.00 - $ 928.00
$ 928.00

Foster 3303S/S, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3303S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Serie...

View full details
$ 1,161.00
$ 1,161.00 - $ 1,161.00
$ 1,161.00
$ 928.00
$ 928.00 - $ 928.00
$ 928.00
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 %
$ 301.00
$ 301.00 - $ 301.00
$ 301.00
$ 242.00
$ 242.00 - $ 242.00
$ 242.00

Foster 3303H, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Heat/Viton, Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3303H is a Steel 1/4" industrial coupler from the Foster 3 Series — the mo...

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$ 301.00
$ 301.00 - $ 301.00
$ 301.00
$ 242.00
$ 242.00 - $ 242.00
$ 242.00
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 %
$ 300.00
$ 300.00 - $ 300.00
$ 300.00
$ 240.00
$ 240.00 - $ 240.00
$ 240.00

Foster BL3303, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3303 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 300.00
$ 300.00 - $ 300.00
$ 300.00
$ 240.00
$ 240.00 - $ 240.00
$ 240.00
Save 20% Save %

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