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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 %
$ 701.00
$ 701.00 - $ 701.00
$ 701.00
$ 560.00
$ 560.00 - $ 560.00
$ 560.00

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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$ 701.00
$ 701.00 - $ 701.00
$ 701.00
$ 560.00
$ 560.00 - $ 560.00
$ 560.00
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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 %
$ 901.00
$ 901.00 - $ 901.00
$ 901.00
$ 721.00
$ 721.00 - $ 721.00
$ 721.00

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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$ 901.00
$ 901.00 - $ 901.00
$ 901.00
$ 721.00
$ 721.00 - $ 721.00
$ 721.00
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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 %
$ 853.00
$ 853.00 - $ 853.00
$ 853.00
$ 681.00
$ 681.00 - $ 681.00
$ 681.00

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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$ 853.00
$ 853.00 - $ 853.00
$ 853.00
$ 681.00
$ 681.00 - $ 681.00
$ 681.00
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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 %
$ 647.00
$ 647.00 - $ 647.00
$ 647.00
$ 517.00
$ 517.00 - $ 517.00
$ 517.00

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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$ 647.00
$ 647.00 - $ 647.00
$ 647.00
$ 517.00
$ 517.00 - $ 517.00
$ 517.00
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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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$ 711.00
$ 711.00 - $ 711.00
$ 711.00
$ 569.00
$ 569.00 - $ 569.00
$ 569.00

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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$ 711.00
$ 711.00 - $ 711.00
$ 711.00
$ 569.00
$ 569.00 - $ 569.00
$ 569.00
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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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$ 697.00
$ 697.00 - $ 697.00
$ 697.00
$ 559.00
$ 559.00 - $ 559.00
$ 559.00

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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$ 697.00
$ 697.00 - $ 697.00
$ 697.00
$ 559.00
$ 559.00 - $ 559.00
$ 559.00
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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$ 699.00
$ 699.00 - $ 699.00
$ 699.00
$ 559.00
$ 559.00 - $ 559.00
$ 559.00

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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$ 699.00
$ 699.00 - $ 699.00
$ 699.00
$ 559.00
$ 559.00 - $ 559.00
$ 559.00
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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$ 1,852.00
$ 1,852.00 - $ 1,852.00
$ 1,852.00
$ 1,482.00
$ 1,482.00 - $ 1,482.00
$ 1,482.00

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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$ 1,852.00
$ 1,852.00 - $ 1,852.00
$ 1,852.00
$ 1,482.00
$ 1,482.00 - $ 1,482.00
$ 1,482.00
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 %
$ 1,987.00
$ 1,987.00 - $ 1,987.00
$ 1,987.00
$ 1,589.00
$ 1,589.00 - $ 1,589.00
$ 1,589.00

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...

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$ 1,987.00
$ 1,987.00 - $ 1,987.00
$ 1,987.00
$ 1,589.00
$ 1,589.00 - $ 1,589.00
$ 1,589.00
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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$ 2,013.00
$ 2,013.00 - $ 2,013.00
$ 2,013.00
$ 1,612.00
$ 1,612.00 - $ 1,612.00
$ 1,612.00

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...

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$ 2,013.00
$ 2,013.00 - $ 2,013.00
$ 2,013.00
$ 1,612.00
$ 1,612.00 - $ 1,612.00
$ 1,612.00
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 %
$ 1,888.00
$ 1,888.00 - $ 1,888.00
$ 1,888.00
$ 1,510.00
$ 1,510.00 - $ 1,510.00
$ 1,510.00

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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$ 1,888.00
$ 1,888.00 - $ 1,888.00
$ 1,888.00
$ 1,510.00
$ 1,510.00 - $ 1,510.00
$ 1,510.00
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 %
$ 726.00
$ 726.00 - $ 726.00
$ 726.00
$ 581.00
$ 581.00 - $ 581.00
$ 581.00

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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$ 726.00
$ 726.00 - $ 726.00
$ 726.00
$ 581.00
$ 581.00 - $ 581.00
$ 581.00
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 %
$ 583.00
$ 583.00 - $ 583.00
$ 583.00
$ 467.00
$ 467.00 - $ 467.00
$ 467.00

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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$ 583.00
$ 583.00 - $ 583.00
$ 583.00
$ 467.00
$ 467.00 - $ 467.00
$ 467.00
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 %
$ 1,129.00
$ 1,129.00 - $ 1,129.00
$ 1,129.00
$ 903.00
$ 903.00 - $ 903.00
$ 903.00

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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$ 1,129.00
$ 1,129.00 - $ 1,129.00
$ 1,129.00
$ 903.00
$ 903.00 - $ 903.00
$ 903.00
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 %
$ 1,416.00
$ 1,416.00 - $ 1,416.00
$ 1,416.00
$ 1,133.00
$ 1,133.00 - $ 1,133.00
$ 1,133.00

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
$ 1,416.00
$ 1,416.00 - $ 1,416.00
$ 1,416.00
$ 1,133.00
$ 1,133.00 - $ 1,133.00
$ 1,133.00
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 %
$ 1,395.00
$ 1,395.00 - $ 1,395.00
$ 1,395.00
$ 1,115.00
$ 1,115.00 - $ 1,115.00
$ 1,115.00

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...

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$ 1,395.00
$ 1,395.00 - $ 1,395.00
$ 1,395.00
$ 1,115.00
$ 1,115.00 - $ 1,115.00
$ 1,115.00
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 %
$ 856.00
$ 856.00 - $ 856.00
$ 856.00
$ 685.00
$ 685.00 - $ 685.00
$ 685.00

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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$ 856.00
$ 856.00 - $ 856.00
$ 856.00
$ 685.00
$ 685.00 - $ 685.00
$ 685.00
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 %
$ 1,081.00
$ 1,081.00 - $ 1,081.00
$ 1,081.00
$ 865.00
$ 865.00 - $ 865.00
$ 865.00

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
$ 1,081.00
$ 1,081.00 - $ 1,081.00
$ 1,081.00
$ 865.00
$ 865.00 - $ 865.00
$ 865.00
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 %
$ 3,233.00
$ 3,233.00 - $ 3,233.00
$ 3,233.00
$ 2,587.00
$ 2,587.00 - $ 2,587.00
$ 2,587.00

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...

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$ 3,233.00
$ 3,233.00 - $ 3,233.00
$ 3,233.00
$ 2,587.00
$ 2,587.00 - $ 2,587.00
$ 2,587.00
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 %
$ 3,458.00
$ 3,458.00 - $ 3,458.00
$ 3,458.00
$ 2,766.00
$ 2,766.00 - $ 2,766.00
$ 2,766.00

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
$ 3,458.00
$ 3,458.00 - $ 3,458.00
$ 3,458.00
$ 2,766.00
$ 2,766.00 - $ 2,766.00
$ 2,766.00
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 %
$ 3,394.00
$ 3,394.00 - $ 3,394.00
$ 3,394.00
$ 2,716.00
$ 2,716.00 - $ 2,716.00
$ 2,716.00

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
$ 3,394.00
$ 3,394.00 - $ 3,394.00
$ 3,394.00
$ 2,716.00
$ 2,716.00 - $ 2,716.00
$ 2,716.00
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 %
$ 1,093.00
$ 1,093.00 - $ 1,093.00
$ 1,093.00
$ 873.00
$ 873.00 - $ 873.00
$ 873.00

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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$ 1,093.00
$ 1,093.00 - $ 1,093.00
$ 1,093.00
$ 873.00
$ 873.00 - $ 873.00
$ 873.00
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 %
$ 856.00
$ 856.00 - $ 856.00
$ 856.00
$ 685.00
$ 685.00 - $ 685.00
$ 685.00

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
$ 856.00
$ 856.00 - $ 856.00
$ 856.00
$ 685.00
$ 685.00 - $ 685.00
$ 685.00
Save 20% Save %

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