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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 %
$ 8,905.00
$ 8,905.00 - $ 8,905.00
$ 8,905.00
$ 7,125.00
$ 7,125.00 - $ 7,125.00
$ 7,125.00

Foster FF12P-12SS, 1/2" Flat Face Hydraulic Plug x 3/4" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF12P-12SS is a 316 stainless steel 1/2" plug from ...

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$ 8,905.00
$ 8,905.00 - $ 8,905.00
$ 8,905.00
$ 7,125.00
$ 7,125.00 - $ 7,125.00
$ 7,125.00
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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 %
$ 835.00
$ 835.00 - $ 835.00
$ 835.00
$ 668.00
$ 668.00 - $ 668.00
$ 668.00

Foster FF12P-12, 1/2" Flat Face Hydraulic Plug x 3/4" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF12P-12 is a nickel-plated steel 1/2" plug from th...

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$ 835.00
$ 835.00 - $ 835.00
$ 835.00
$ 668.00
$ 668.00 - $ 668.00
$ 668.00
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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 %
$ 877.00
$ 877.00 - $ 877.00
$ 877.00
$ 701.00
$ 701.00 - $ 701.00
$ 701.00

Foster FF12P-106ORB, 1/2" Flat Face Hydraulic Plug x 1-1/16"-12 ORB, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF12P-106ORB is a nickel-plated steel 1/2" plug fro...

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$ 877.00
$ 877.00 - $ 877.00
$ 877.00
$ 701.00
$ 701.00 - $ 701.00
$ 701.00
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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 %
$ 736.00
$ 736.00 - $ 736.00
$ 736.00
$ 590.00
$ 590.00 - $ 590.00
$ 590.00

Foster FF12P-08, 1/2" Flat Face Hydraulic Plug x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF12P-08 is a nickel-plated steel 1/2" plug from th...

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$ 736.00
$ 736.00 - $ 736.00
$ 736.00
$ 590.00
$ 590.00 - $ 590.00
$ 590.00
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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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$ 2,507.00
$ 2,507.00 - $ 2,507.00
$ 2,507.00
$ 2,006.00
$ 2,006.00 - $ 2,006.00
$ 2,006.00

Foster FF12CUPP-12, 1/2" Flat Face Connect-Under-Pressure Hydraulic Plug x 3/4" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF12CUPP-12 is a nickel-plated steel 1/2" plug from...

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$ 2,507.00
$ 2,507.00 - $ 2,507.00
$ 2,507.00
$ 2,006.00
$ 2,006.00 - $ 2,006.00
$ 2,006.00
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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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$ 2,507.00
$ 2,507.00 - $ 2,507.00
$ 2,507.00
$ 2,006.00
$ 2,006.00 - $ 2,006.00
$ 2,006.00

Foster FF12CUPP-08, 1/2" Flat Face Connect-Under-Pressure Hydraulic Plug x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF12CUPP-08 is a nickel-plated steel 1/2" plug from...

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$ 2,507.00
$ 2,507.00 - $ 2,507.00
$ 2,507.00
$ 2,006.00
$ 2,006.00 - $ 2,006.00
$ 2,006.00
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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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$ 1,276.00
$ 1,276.00 - $ 1,276.00
$ 1,276.00
$ 1,020.00
$ 1,020.00 - $ 1,020.00
$ 1,020.00

Foster FF10S-75ORB, 3/8" Flat Face Hydraulic Coupler x 3/4"-16 ORB, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-75ORB is a nickel-plated steel 3/8" coupler f...

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$ 1,276.00
$ 1,276.00 - $ 1,276.00
$ 1,276.00
$ 1,020.00
$ 1,020.00 - $ 1,020.00
$ 1,020.00
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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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$ 8,562.00
$ 8,562.00 - $ 8,562.00
$ 8,562.00
$ 6,850.00
$ 6,850.00 - $ 6,850.00
$ 6,850.00

Foster FF10S-08SS, 3/8" Flat Face Hydraulic Coupler x 1/2" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-08SS is a 316 stainless steel 3/8" coupler fr...

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$ 8,562.00
$ 8,562.00 - $ 8,562.00
$ 8,562.00
$ 6,850.00
$ 6,850.00 - $ 6,850.00
$ 6,850.00
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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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$ 1,027.00
$ 1,027.00 - $ 1,027.00
$ 1,027.00
$ 822.00
$ 822.00 - $ 822.00
$ 822.00

Foster FF10S-08, 3/8" Flat Face Hydraulic Coupler x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-08 is a nickel-plated steel 3/8" coupler from...

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$ 1,027.00
$ 1,027.00 - $ 1,027.00
$ 1,027.00
$ 822.00
$ 822.00 - $ 822.00
$ 822.00
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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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$ 7,878.00
$ 7,878.00 - $ 7,878.00
$ 7,878.00
$ 6,302.00
$ 6,302.00 - $ 6,302.00
$ 6,302.00

Foster FF10S-06SS, 3/8" Flat Face Hydraulic Coupler x 3/8" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-06SS is a 316 stainless steel 3/8" coupler fr...

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$ 7,878.00
$ 7,878.00 - $ 7,878.00
$ 7,878.00
$ 6,302.00
$ 6,302.00 - $ 6,302.00
$ 6,302.00
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 %
$ 1,046.00
$ 1,046.00 - $ 1,046.00
$ 1,046.00
$ 837.00
$ 837.00 - $ 837.00
$ 837.00

Foster FF10S-06, 3/8" Flat Face Hydraulic Coupler x 3/8" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10S-06 is a nickel-plated steel 3/8" coupler from...

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$ 1,046.00
$ 1,046.00 - $ 1,046.00
$ 1,046.00
$ 837.00
$ 837.00 - $ 837.00
$ 837.00
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 %
$ 568.00
$ 568.00 - $ 568.00
$ 568.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00

Foster FF10P-75ORB, 3/8" Flat Face Hydraulic Plug x 3/4"-16 ORB, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-75ORB is a nickel-plated steel 3/8" plug from...

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$ 568.00
$ 568.00 - $ 568.00
$ 568.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00
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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 %
$ 5,481.00
$ 5,481.00 - $ 5,481.00
$ 5,481.00
$ 4,385.00
$ 4,385.00 - $ 4,385.00
$ 4,385.00

Foster FF10P-08SS, 3/8" Flat Face Hydraulic Plug x 1/2" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-08SS is a 316 stainless steel 3/8" plug from ...

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$ 5,481.00
$ 5,481.00 - $ 5,481.00
$ 5,481.00
$ 4,385.00
$ 4,385.00 - $ 4,385.00
$ 4,385.00
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 %
$ 456.00
$ 456.00 - $ 456.00
$ 456.00
$ 366.00
$ 366.00 - $ 366.00
$ 366.00

Foster FF10P-08, 3/8" Flat Face Hydraulic Plug x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-08 is a nickel-plated steel 3/8" plug from th...

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$ 456.00
$ 456.00 - $ 456.00
$ 456.00
$ 366.00
$ 366.00 - $ 366.00
$ 366.00
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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 %
$ 4,795.00
$ 4,795.00 - $ 4,795.00
$ 4,795.00
$ 3,837.00
$ 3,837.00 - $ 3,837.00
$ 3,837.00

Foster FF10P-06SS, 3/8" Flat Face Hydraulic Plug x 3/8" Female NPT, FF Plus Series, 316 Stainless Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-06SS is a 316 stainless steel 3/8" plug from ...

View full details
$ 4,795.00
$ 4,795.00 - $ 4,795.00
$ 4,795.00
$ 3,837.00
$ 3,837.00 - $ 3,837.00
$ 3,837.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 380.00
$ 380.00 - $ 380.00
$ 380.00
$ 303.00
$ 303.00 - $ 303.00
$ 303.00

Foster FF10P-06, 3/8" Flat Face Hydraulic Plug x 3/8" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10P-06 is a nickel-plated steel 3/8" plug from th...

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$ 380.00
$ 380.00 - $ 380.00
$ 380.00
$ 303.00
$ 303.00 - $ 303.00
$ 303.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 2,234.00
$ 2,234.00 - $ 2,234.00
$ 2,234.00
$ 1,789.00
$ 1,789.00 - $ 1,789.00
$ 1,789.00

Foster FF10CUPP-08, 3/8" Flat Face Connect-Under-Pressure Hydraulic Plug x 1/2" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10CUPP-08 is a nickel-plated steel 3/8" plug from...

View full details
$ 2,234.00
$ 2,234.00 - $ 2,234.00
$ 2,234.00
$ 1,789.00
$ 1,789.00 - $ 1,789.00
$ 1,789.00
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 %
$ 2,234.00
$ 2,234.00 - $ 2,234.00
$ 2,234.00
$ 1,789.00
$ 1,789.00 - $ 1,789.00
$ 1,789.00

Foster FF10CUPP-06, 3/8" Flat Face Connect-Under-Pressure Hydraulic Plug x 3/8" Female NPT, FF Plus Series, Nickel-Plated Steel

Premium flat-face hydraulic connections that stay clean and lose virtually no fluid. The Foster FF10CUPP-06 is a nickel-plated steel 3/8" plug from...

View full details
$ 2,234.00
$ 2,234.00 - $ 2,234.00
$ 2,234.00
$ 1,789.00
$ 1,789.00 - $ 1,789.00
$ 1,789.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 327.00
$ 327.00 - $ 327.00
$ 327.00
$ 263.00
$ 263.00 - $ 263.00
$ 263.00

Foster A12DC-DP, 3/4" ISO-A Dust Cap & Plug Combo, 6600 Series, Steel

Keeps dirt and debris out of disconnected ISO-A hydraulic couplings. The Foster A12DC-DP is a steel dust cap and plug set sized for 3/4" ISO 7241-1...

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$ 327.00
$ 327.00 - $ 327.00
$ 327.00
$ 263.00
$ 263.00 - $ 263.00
$ 263.00
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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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$ 35.00
$ 35.00 - $ 35.00
$ 35.00
$ 28.00
$ 28.00 - $ 28.00
$ 28.00

Foster A16DC-DP, 1" ISO-A Dust Cap & Plug Combo, 6600 Series, Steel

Keeps dirt and debris out of disconnected ISO-A hydraulic couplings. The Foster A16DC-DP is a steel dust cap and plug set sized for 1" ISO 7241-1 S...

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$ 35.00
$ 35.00 - $ 35.00
$ 35.00
$ 28.00
$ 28.00 - $ 28.00
$ 28.00
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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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$ 282.00
$ 282.00 - $ 282.00
$ 282.00
$ 227.00
$ 227.00 - $ 227.00
$ 227.00

Foster A04DC-DP, 1/4" ISO-A Dust Cap & Plug Combo, 6600 Series, Steel

Keeps dirt and debris out of disconnected ISO-A hydraulic couplings. The Foster A04DC-DP is a steel dust cap and plug set sized for 1/4" ISO 7241-1...

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$ 282.00
$ 282.00 - $ 282.00
$ 282.00
$ 227.00
$ 227.00 - $ 227.00
$ 227.00
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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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$ 862.00
$ 862.00 - $ 862.00
$ 862.00
$ 689.00
$ 689.00 - $ 689.00
$ 689.00

Foster K8SLV, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Less Valve, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8SLV is a steel 1" plug in the FHK Serie...

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$ 862.00
$ 862.00 - $ 862.00
$ 862.00
$ 689.00
$ 689.00 - $ 689.00
$ 689.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 1,100.00
$ 1,100.00 - $ 1,100.00
$ 1,100.00
$ 879.00
$ 879.00 - $ 879.00
$ 879.00

Foster K8S16, 1" ISO-B Hydraulic Plug x 15/16"-12 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S16 is a steel 1" plug in the FHK Serie...

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$ 1,100.00
$ 1,100.00 - $ 1,100.00
$ 1,100.00
$ 879.00
$ 879.00 - $ 879.00
$ 879.00
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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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$ 1,088.00
$ 1,088.00 - $ 1,088.00
$ 1,088.00
$ 870.00
$ 870.00 - $ 870.00
$ 870.00

Foster K8S-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S-101 is a steel 1" plug in the FHK Ser...

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$ 1,088.00
$ 1,088.00 - $ 1,088.00
$ 1,088.00
$ 870.00
$ 870.00 - $ 870.00
$ 870.00
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