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Foster ISO-B Series Couplers

Foster ISO-B (FHK) Series hydraulic quick couplers and plugs, compatible with ISO 7241-1 Series B — the most widely used industrial hydraulic interchange. Two-way shut-off seals both halves at disconnect to prevent fluid loss and air inclusion. Manual sleeve connection at zero pressure. Body sizes 1/8" to 1", in RoHS-plated steel, brass, and 303/316 stainless with Buna-N seals.

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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 %
$ 737.00
$ 737.00 - $ 737.00
$ 737.00
$ 589.00
$ 589.00 - $ 589.00
$ 589.00

Foster K6B, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6B is a brass 3/4" plug in the FHK Serie...

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$ 737.00
$ 737.00 - $ 737.00
$ 737.00
$ 589.00
$ 589.00 - $ 589.00
$ 589.00
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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 %
$ 947.00
$ 947.00 - $ 947.00
$ 947.00
$ 758.00
$ 758.00 - $ 758.00
$ 758.00

Foster K6B-101, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Viton Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6B-101 is a brass 3/4" plug in the FHK S...

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$ 947.00
$ 947.00 - $ 947.00
$ 947.00
$ 758.00
$ 758.00 - $ 758.00
$ 758.00
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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 %
$ 897.00
$ 897.00 - $ 897.00
$ 897.00
$ 717.00
$ 717.00 - $ 717.00
$ 717.00

Foster K6B-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6B-103 is a brass 3/4" plug in the FHK S...

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$ 897.00
$ 897.00 - $ 897.00
$ 897.00
$ 717.00
$ 717.00 - $ 717.00
$ 717.00
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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 %
$ 680.00
$ 680.00 - $ 680.00
$ 680.00
$ 544.00
$ 544.00 - $ 544.00
$ 544.00

Foster K6S, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S is a steel 3/4" plug in the FHK Serie...

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$ 680.00
$ 680.00 - $ 680.00
$ 680.00
$ 544.00
$ 544.00 - $ 544.00
$ 544.00
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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 %
$ 747.00
$ 747.00 - $ 747.00
$ 747.00
$ 598.00
$ 598.00 - $ 598.00
$ 598.00

Foster K6S-101, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6S-101 is a steel 3/4" plug in the FHK S...

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$ 747.00
$ 747.00 - $ 747.00
$ 747.00
$ 598.00
$ 598.00 - $ 598.00
$ 598.00
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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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$ 733.00
$ 733.00 - $ 733.00
$ 733.00
$ 587.00
$ 587.00 - $ 587.00
$ 587.00

Foster K6S-102, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Neoprene Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S-102 is a steel 3/4" plug in the FHK S...

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$ 733.00
$ 733.00 - $ 733.00
$ 733.00
$ 587.00
$ 587.00 - $ 587.00
$ 587.00
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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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$ 735.00
$ 735.00 - $ 735.00
$ 735.00
$ 587.00
$ 587.00 - $ 587.00
$ 587.00

Foster K6S-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S-103 is a steel 3/4" plug in the FHK S...

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$ 735.00
$ 735.00 - $ 735.00
$ 735.00
$ 587.00
$ 587.00 - $ 587.00
$ 587.00
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 %
$ 1,947.00
$ 1,947.00 - $ 1,947.00
$ 1,947.00
$ 1,558.00
$ 1,558.00 - $ 1,558.00
$ 1,558.00

Foster K6S/S, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S/S is a 303 stainless 3/4" plug in the...

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$ 1,947.00
$ 1,947.00 - $ 1,947.00
$ 1,947.00
$ 1,558.00
$ 1,558.00 - $ 1,558.00
$ 1,558.00
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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$ 2,089.00
$ 2,089.00 - $ 2,089.00
$ 2,089.00
$ 1,671.00
$ 1,671.00 - $ 1,671.00
$ 1,671.00

Foster K6S/S-101, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S/S-101 is a 303 stainless 3/4" plug in...

View full details
$ 2,089.00
$ 2,089.00 - $ 2,089.00
$ 2,089.00
$ 1,671.00
$ 1,671.00 - $ 1,671.00
$ 1,671.00
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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$ 2,116.00
$ 2,116.00 - $ 2,116.00
$ 2,116.00
$ 1,695.00
$ 1,695.00 - $ 1,695.00
$ 1,695.00

Foster K6S/S-103, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S/S-103 is a 303 stainless 3/4" plug in...

View full details
$ 2,116.00
$ 2,116.00 - $ 2,116.00
$ 2,116.00
$ 1,695.00
$ 1,695.00 - $ 1,695.00
$ 1,695.00
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 %
$ 1,985.00
$ 1,985.00 - $ 1,985.00
$ 1,985.00
$ 1,587.00
$ 1,587.00 - $ 1,587.00
$ 1,587.00

Foster K6S/SLV, 3/4" ISO-B Hydraulic Plug x 3/4" Female NPT, ISO-B Series, Less Valve, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S/SLV is a 303 stainless 3/4" plug in t...

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$ 1,985.00
$ 1,985.00 - $ 1,985.00
$ 1,985.00
$ 1,587.00
$ 1,587.00 - $ 1,587.00
$ 1,587.00
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 %
$ 764.00
$ 764.00 - $ 764.00
$ 764.00
$ 611.00
$ 611.00 - $ 611.00
$ 611.00

Foster K6S12, 3/4" ISO-B Hydraulic Plug x 1-1/16"-12 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K6S12 is a steel 3/4" plug in the FHK Ser...

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$ 764.00
$ 764.00 - $ 764.00
$ 764.00
$ 611.00
$ 611.00 - $ 611.00
$ 611.00
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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 %
$ 613.00
$ 613.00 - $ 613.00
$ 613.00
$ 491.00
$ 491.00 - $ 491.00
$ 491.00

Foster K6SLV, 3/4" ISO-B Hydraulic Plug x 3/4" 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 K6SLV is a steel 3/4" plug in the FHK Ser...

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$ 613.00
$ 613.00 - $ 613.00
$ 613.00
$ 491.00
$ 491.00 - $ 491.00
$ 491.00
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 K8B, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8B is a brass 1" plug in the FHK Series,...

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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 %
$ 1,489.00
$ 1,489.00 - $ 1,489.00
$ 1,489.00
$ 1,191.00
$ 1,191.00 - $ 1,191.00
$ 1,191.00

Foster K8B-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8B-101 is a brass 1" plug in the FHK Ser...

View full details
$ 1,489.00
$ 1,489.00 - $ 1,489.00
$ 1,489.00
$ 1,191.00
$ 1,191.00 - $ 1,191.00
$ 1,191.00
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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$ 1,467.00
$ 1,467.00 - $ 1,467.00
$ 1,467.00
$ 1,173.00
$ 1,173.00 - $ 1,173.00
$ 1,173.00

Foster K8B-103, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, EPDM Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8B-103 is a brass 1" plug in the FHK Ser...

View full details
$ 1,467.00
$ 1,467.00 - $ 1,467.00
$ 1,467.00
$ 1,173.00
$ 1,173.00 - $ 1,173.00
$ 1,173.00
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 %
$ 900.00
$ 900.00 - $ 900.00
$ 900.00
$ 720.00
$ 720.00 - $ 720.00
$ 720.00

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

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

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$ 900.00
$ 900.00 - $ 900.00
$ 900.00
$ 720.00
$ 720.00 - $ 720.00
$ 720.00
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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$ 1,136.00
$ 1,136.00 - $ 1,136.00
$ 1,136.00
$ 909.00
$ 909.00 - $ 909.00
$ 909.00

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...

View full details
$ 1,136.00
$ 1,136.00 - $ 1,136.00
$ 1,136.00
$ 909.00
$ 909.00 - $ 909.00
$ 909.00
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 %
$ 3,400.00
$ 3,400.00 - $ 3,400.00
$ 3,400.00
$ 2,720.00
$ 2,720.00 - $ 2,720.00
$ 2,720.00

Foster K8S/S, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S/S is a 303 stainless 1" plug in the F...

View full details
$ 3,400.00
$ 3,400.00 - $ 3,400.00
$ 3,400.00
$ 2,720.00
$ 2,720.00 - $ 2,720.00
$ 2,720.00
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 %
$ 3,636.00
$ 3,636.00 - $ 3,636.00
$ 3,636.00
$ 2,909.00
$ 2,909.00 - $ 2,909.00
$ 2,909.00

Foster K8S/S-101, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S/S-101 is a 303 stainless 1" plug in t...

View full details
$ 3,636.00
$ 3,636.00 - $ 3,636.00
$ 3,636.00
$ 2,909.00
$ 2,909.00 - $ 2,909.00
$ 2,909.00
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 %
$ 3,569.00
$ 3,569.00 - $ 3,569.00
$ 3,569.00
$ 2,856.00
$ 2,856.00 - $ 2,856.00
$ 2,856.00

Foster K8S/S-103, 1" ISO-B Hydraulic Plug x 1" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K8S/S-103 is a 303 stainless 1" plug in t...

View full details
$ 3,569.00
$ 3,569.00 - $ 3,569.00
$ 3,569.00
$ 2,856.00
$ 2,856.00 - $ 2,856.00
$ 2,856.00
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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$ 1,149.00
$ 1,149.00 - $ 1,149.00
$ 1,149.00
$ 918.00
$ 918.00 - $ 918.00
$ 918.00

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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$ 1,149.00
$ 1,149.00 - $ 1,149.00
$ 1,149.00
$ 918.00
$ 918.00 - $ 918.00
$ 918.00
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 %
$ 900.00
$ 900.00 - $ 900.00
$ 900.00
$ 720.00
$ 720.00 - $ 720.00
$ 720.00

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...

View full details
$ 900.00
$ 900.00 - $ 900.00
$ 900.00
$ 720.00
$ 720.00 - $ 720.00
$ 720.00
Save 20% Save %

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