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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 %
$ 463.00
$ 463.00 - $ 463.00
$ 463.00
$ 371.00
$ 371.00 - $ 371.00
$ 371.00

Foster FMSB3-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 1/2" OD, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FMSB3-3 is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 463.00
$ 463.00 - $ 463.00
$ 463.00
$ 371.00
$ 371.00 - $ 371.00
$ 371.00
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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 %
$ 463.00
$ 463.00 - $ 463.00
$ 463.00
$ 371.00
$ 371.00 - $ 371.00
$ 371.00

Foster FM3703S, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3703S is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — t...

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$ 463.00
$ 463.00 - $ 463.00
$ 463.00
$ 371.00
$ 371.00 - $ 371.00
$ 371.00
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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 %
$ 473.00
$ 473.00 - $ 473.00
$ 473.00
$ 380.00
$ 380.00 - $ 380.00
$ 380.00

Foster SL3703, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL3703 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 473.00
$ 473.00 - $ 473.00
$ 473.00
$ 380.00
$ 380.00 - $ 380.00
$ 380.00
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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 %
$ 409.00
$ 409.00 - $ 409.00
$ 409.00
$ 328.00
$ 328.00 - $ 328.00
$ 328.00

Foster FM3703, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3703 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 409.00
$ 409.00 - $ 409.00
$ 409.00
$ 328.00
$ 328.00 - $ 328.00
$ 328.00
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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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$ 486.00
$ 486.00 - $ 486.00
$ 486.00
$ 389.00
$ 389.00 - $ 389.00
$ 389.00

Foster SL3653, 1/4" Industrial Coupler x 5/16" Hose ID, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL3653 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 486.00
$ 486.00 - $ 486.00
$ 486.00
$ 389.00
$ 389.00 - $ 389.00
$ 389.00
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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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$ 402.00
$ 402.00 - $ 402.00
$ 402.00
$ 323.00
$ 323.00 - $ 323.00
$ 323.00

Foster FM3653, 1/4" Industrial Coupler x 5/16" Hose ID, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3653 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 402.00
$ 402.00 - $ 402.00
$ 402.00
$ 323.00
$ 323.00 - $ 323.00
$ 323.00
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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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$ 467.00
$ 467.00 - $ 467.00
$ 467.00
$ 373.00
$ 373.00 - $ 373.00
$ 373.00

Foster FM3603S, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3603S is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — t...

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$ 467.00
$ 467.00 - $ 467.00
$ 467.00
$ 373.00
$ 373.00 - $ 373.00
$ 373.00
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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 %
$ 477.00
$ 477.00 - $ 477.00
$ 477.00
$ 382.00
$ 382.00 - $ 382.00
$ 382.00

Foster SL3603, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL3603 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 477.00
$ 477.00 - $ 477.00
$ 477.00
$ 382.00
$ 382.00 - $ 382.00
$ 382.00
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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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$ 395.00
$ 395.00 - $ 395.00
$ 395.00
$ 317.00
$ 317.00 - $ 317.00
$ 317.00

Foster FM3603, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3603 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 395.00
$ 395.00 - $ 395.00
$ 395.00
$ 317.00
$ 317.00 - $ 317.00
$ 317.00
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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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$ 435.00
$ 435.00 - $ 435.00
$ 435.00
$ 349.00
$ 349.00 - $ 349.00
$ 349.00

Foster FM1713W, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM1713W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — t...

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$ 435.00
$ 435.00 - $ 435.00
$ 435.00
$ 349.00
$ 349.00 - $ 349.00
$ 349.00
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 %
$ 463.00
$ 463.00 - $ 463.00
$ 463.00
$ 371.00
$ 371.00 - $ 371.00
$ 371.00

Foster SL1713, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL1713 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 463.00
$ 463.00 - $ 463.00
$ 463.00
$ 371.00
$ 371.00 - $ 371.00
$ 371.00
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 %
$ 382.00
$ 382.00 - $ 382.00
$ 382.00
$ 305.00
$ 305.00 - $ 305.00
$ 305.00

Foster FM1713, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM1713 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 382.00
$ 382.00 - $ 382.00
$ 382.00
$ 305.00
$ 305.00 - $ 305.00
$ 305.00
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 %
$ 453.00
$ 453.00 - $ 453.00
$ 453.00
$ 361.00
$ 361.00 - $ 361.00
$ 361.00

Foster SL1513, 1/4" Industrial Coupler x 1/4" Push-On Hose Stem, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL1513 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 453.00
$ 453.00 - $ 453.00
$ 453.00
$ 361.00
$ 361.00 - $ 361.00
$ 361.00
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 %
$ 371.00
$ 371.00 - $ 371.00
$ 371.00
$ 297.00
$ 297.00 - $ 297.00
$ 297.00

Foster FM1513, 1/4" Industrial Coupler x 1/4" Push-On Hose Stem, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM1513 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 371.00
$ 371.00 - $ 371.00
$ 371.00
$ 297.00
$ 297.00 - $ 297.00
$ 297.00
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 %
$ 449.00
$ 449.00 - $ 449.00
$ 449.00
$ 359.00
$ 359.00 - $ 359.00
$ 359.00

Foster FM3303W, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3303W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — t...

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$ 449.00
$ 449.00 - $ 449.00
$ 449.00
$ 359.00
$ 359.00 - $ 359.00
$ 359.00
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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 %
$ 446.00
$ 446.00 - $ 446.00
$ 446.00
$ 356.00
$ 356.00 - $ 356.00
$ 356.00

Foster SL3303, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL3303 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 446.00
$ 446.00 - $ 446.00
$ 446.00
$ 356.00
$ 356.00 - $ 356.00
$ 356.00
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 %
$ 389.00
$ 389.00 - $ 389.00
$ 389.00
$ 311.00
$ 311.00 - $ 311.00
$ 311.00

Foster FM3303, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Automatic, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3303 is a Brass 1/4" industrial coupler from the Foster 3 Series — the m...

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$ 389.00
$ 389.00 - $ 389.00
$ 389.00
$ 311.00
$ 311.00 - $ 311.00
$ 311.00
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 %
$ 525.00
$ 525.00 - $ 525.00
$ 525.00
$ 420.00
$ 420.00 - $ 420.00
$ 420.00

Foster SL3103W, 1/4" Industrial Coupler x 1/4" Male NPT, 3 Series, Automatic Sleeve Lock, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL3103W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — t...

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$ 525.00
$ 525.00 - $ 525.00
$ 525.00
$ 420.00
$ 420.00 - $ 420.00
$ 420.00
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 %
$ 442.00
$ 442.00 - $ 442.00
$ 442.00
$ 354.00
$ 354.00 - $ 354.00
$ 354.00

Foster FM3103W, 1/4" Industrial Coupler x 1/4" Male NPT, 3 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3103W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — t...

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$ 442.00
$ 442.00 - $ 442.00
$ 442.00
$ 354.00
$ 354.00 - $ 354.00
$ 354.00
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 %
$ 435.00
$ 435.00 - $ 435.00
$ 435.00
$ 349.00
$ 349.00 - $ 349.00
$ 349.00

Foster FM3103S, 1/4" Industrial Coupler x 1/4" Male NPT, 3 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3103S is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — t...

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$ 435.00
$ 435.00 - $ 435.00
$ 435.00
$ 349.00
$ 349.00 - $ 349.00
$ 349.00
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 %
$ 505.00
$ 505.00 - $ 505.00
$ 505.00
$ 404.00
$ 404.00 - $ 404.00
$ 404.00

Foster SL3103HW, 1/4" Industrial Coupler x 1/4" Male NPT, 3 Series, Automatic Sleeve Lock, Hot Water/Viton, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL3103HW is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — ...

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$ 505.00
$ 505.00 - $ 505.00
$ 505.00
$ 404.00
$ 404.00 - $ 404.00
$ 404.00
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 %
$ 442.00
$ 442.00 - $ 442.00
$ 442.00
$ 354.00
$ 354.00 - $ 354.00
$ 354.00

Foster FM3103HW, 1/4" Industrial Coupler x 1/4" Male NPT, 3 Series, Automatic, Hot Water/Viton, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3103HW is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — ...

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$ 442.00
$ 442.00 - $ 442.00
$ 442.00
$ 354.00
$ 354.00 - $ 354.00
$ 354.00
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 %
$ 392.00
$ 392.00 - $ 392.00
$ 392.00
$ 314.00
$ 314.00 - $ 314.00
$ 314.00

Foster FM3103H, 1/4" Industrial Coupler x 1/4" Male NPT, 3 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster FM3103H is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 392.00
$ 392.00 - $ 392.00
$ 392.00
$ 314.00
$ 314.00 - $ 314.00
$ 314.00
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 %
$ 477.00
$ 477.00 - $ 477.00
$ 477.00
$ 382.00
$ 382.00 - $ 382.00
$ 382.00

Foster SL3103D, 1/4" Industrial Coupler x 1/4" Male NPT, 3 Series, Automatic Sleeve Lock, Dill Valve, Brass

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SL3103D is a Brass 1/4" industrial coupler from the Foster 3 Series — the ...

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$ 477.00
$ 477.00 - $ 477.00
$ 477.00
$ 382.00
$ 382.00 - $ 382.00
$ 382.00
Save 20% Save %

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