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Hydraulic Quick Couplers

Hydraulic quick couplers join high-pressure fluid lines with a secure, leak-free connection. This collection covers ISO-B, ISO-A, flush face, and specialty hydraulic couplers and plugs in steel, brass, and stainless. Filter by series, body size, thread, and material to match your hydraulic system.

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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 %
$ 183.00
$ 183.00 - $ 183.00
$ 183.00
$ 147.00
$ 147.00 - $ 147.00
$ 147.00

Foster K1BLV, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, Less Valve, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1BLV is a brass 1/8" plug in the FHK Ser...

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$ 183.00
$ 183.00 - $ 183.00
$ 183.00
$ 147.00
$ 147.00 - $ 147.00
$ 147.00
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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 %
$ 230.00
$ 230.00 - $ 230.00
$ 230.00
$ 185.00
$ 185.00 - $ 185.00
$ 185.00

Foster K1B-103, 1/8" ISO-B Hydraulic Plug x 1/8" 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 K1B-103 is a brass 1/8" plug in the FHK S...

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$ 230.00
$ 230.00 - $ 230.00
$ 230.00
$ 185.00
$ 185.00 - $ 185.00
$ 185.00
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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 %
$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00

Foster K1B-101, 1/8" ISO-B Hydraulic Plug x 1/8" 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 K1B-101 is a brass 1/8" plug in the FHK S...

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$ 243.00
$ 243.00 - $ 243.00
$ 243.00
$ 195.00
$ 195.00 - $ 195.00
$ 195.00
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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 %
$ 166.00
$ 166.00 - $ 166.00
$ 166.00
$ 133.00
$ 133.00 - $ 133.00
$ 133.00

Foster K1B, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1B is a brass 1/8" plug in the FHK Serie...

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$ 166.00
$ 166.00 - $ 166.00
$ 166.00
$ 133.00
$ 133.00 - $ 133.00
$ 133.00
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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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$ 1,904.00
$ 1,904.00 - $ 1,904.00
$ 1,904.00
$ 1,523.00
$ 1,523.00 - $ 1,523.00
$ 1,523.00

Foster H8SLV, 1" ISO-B Hydraulic Coupler 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 H8SLV is a steel 1" coupler in the FHK Se...

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$ 1,904.00
$ 1,904.00 - $ 1,904.00
$ 1,904.00
$ 1,523.00
$ 1,523.00 - $ 1,523.00
$ 1,523.00
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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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$ 2,159.00
$ 2,159.00 - $ 2,159.00
$ 2,159.00
$ 1,728.00
$ 1,728.00 - $ 1,728.00
$ 1,728.00

Foster H8S16, 1" ISO-B Hydraulic Coupler 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 H8S16 is a steel 1" coupler in the FHK Se...

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$ 2,159.00
$ 2,159.00 - $ 2,159.00
$ 2,159.00
$ 1,728.00
$ 1,728.00 - $ 1,728.00
$ 1,728.00
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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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$ 2,171.00
$ 2,171.00 - $ 2,171.00
$ 2,171.00
$ 1,738.00
$ 1,738.00 - $ 1,738.00
$ 1,738.00

Foster H8S-101, 1" ISO-B Hydraulic Coupler 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 H8S-101 is a steel 1" coupler in the FHK ...

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$ 2,171.00
$ 2,171.00 - $ 2,171.00
$ 2,171.00
$ 1,738.00
$ 1,738.00 - $ 1,738.00
$ 1,738.00
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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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$ 6,902.00
$ 6,902.00 - $ 6,902.00
$ 6,902.00
$ 5,521.00
$ 5,521.00 - $ 5,521.00
$ 5,521.00

Foster H8S/S-103, 1" ISO-B Hydraulic Coupler 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 H8S/S-103 is a 303 stainless 1" coupler i...

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$ 6,902.00
$ 6,902.00 - $ 6,902.00
$ 6,902.00
$ 5,521.00
$ 5,521.00 - $ 5,521.00
$ 5,521.00
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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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$ 6,976.00
$ 6,976.00 - $ 6,976.00
$ 6,976.00
$ 5,581.00
$ 5,581.00 - $ 5,581.00
$ 5,581.00

Foster H8S/S-101, 1" ISO-B Hydraulic Coupler 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 H8S/S-101 is a 303 stainless 1" coupler i...

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$ 6,976.00
$ 6,976.00 - $ 6,976.00
$ 6,976.00
$ 5,581.00
$ 5,581.00 - $ 5,581.00
$ 5,581.00
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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 %
$ 6,580.00
$ 6,580.00 - $ 6,580.00
$ 6,580.00
$ 5,264.00
$ 5,264.00 - $ 5,264.00
$ 5,264.00

Foster H8S/S, 1" ISO-B Hydraulic Coupler 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 H8S/S is a 303 stainless 1" coupler in th...

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$ 6,580.00
$ 6,580.00 - $ 6,580.00
$ 6,580.00
$ 5,264.00
$ 5,264.00 - $ 5,264.00
$ 5,264.00
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 %
$ 1,868.00
$ 1,868.00 - $ 1,868.00
$ 1,868.00
$ 1,493.00
$ 1,493.00 - $ 1,493.00
$ 1,493.00

Foster H8S, 1" ISO-B Hydraulic Coupler 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 H8S is a steel 1" coupler in the FHK Seri...

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$ 1,868.00
$ 1,868.00 - $ 1,868.00
$ 1,868.00
$ 1,493.00
$ 1,493.00 - $ 1,493.00
$ 1,493.00
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 %
$ 3,307.00
$ 3,307.00 - $ 3,307.00
$ 3,307.00
$ 2,645.00
$ 2,645.00 - $ 2,645.00
$ 2,645.00

Foster H8B-103, 1" ISO-B Hydraulic Coupler 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 H8B-103 is a brass 1" coupler in the FHK ...

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$ 3,307.00
$ 3,307.00 - $ 3,307.00
$ 3,307.00
$ 2,645.00
$ 2,645.00 - $ 2,645.00
$ 2,645.00
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 %
$ 3,266.00
$ 3,266.00 - $ 3,266.00
$ 3,266.00
$ 2,614.00
$ 2,614.00 - $ 2,614.00
$ 2,614.00

Foster H8B-101, 1" ISO-B Hydraulic Coupler 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 H8B-101 is a brass 1" coupler in the FHK ...

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$ 3,266.00
$ 3,266.00 - $ 3,266.00
$ 3,266.00
$ 2,614.00
$ 2,614.00 - $ 2,614.00
$ 2,614.00
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 %
$ 2,950.00
$ 2,950.00 - $ 2,950.00
$ 2,950.00
$ 2,361.00
$ 2,361.00 - $ 2,361.00
$ 2,361.00

Foster H8B, 1" ISO-B Hydraulic Coupler 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 H8B is a brass 1" coupler in the FHK Seri...

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$ 2,950.00
$ 2,950.00 - $ 2,950.00
$ 2,950.00
$ 2,361.00
$ 2,361.00 - $ 2,361.00
$ 2,361.00
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 %
$ 1,549.00
$ 1,549.00 - $ 1,549.00
$ 1,549.00
$ 1,238.00
$ 1,238.00 - $ 1,238.00
$ 1,238.00

Foster H6SLV, 3/4" ISO-B Hydraulic Coupler 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 H6SLV is a steel 3/4" coupler in the FHK ...

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$ 1,549.00
$ 1,549.00 - $ 1,549.00
$ 1,549.00
$ 1,238.00
$ 1,238.00 - $ 1,238.00
$ 1,238.00
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 %
$ 1,581.00
$ 1,581.00 - $ 1,581.00
$ 1,581.00
$ 1,266.00
$ 1,266.00 - $ 1,266.00
$ 1,266.00

Foster H6S12, 3/4" ISO-B Hydraulic Coupler 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 H6S12 is a steel 3/4" coupler in the FHK ...

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$ 1,581.00
$ 1,581.00 - $ 1,581.00
$ 1,581.00
$ 1,266.00
$ 1,266.00 - $ 1,266.00
$ 1,266.00
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 %
$ 1,668.00
$ 1,668.00 - $ 1,668.00
$ 1,668.00
$ 1,335.00
$ 1,335.00 - $ 1,335.00
$ 1,335.00

Foster H6S-103, 3/4" ISO-B Hydraulic Coupler 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 H6S-103 is a steel 3/4" coupler in the FH...

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$ 1,668.00
$ 1,668.00 - $ 1,668.00
$ 1,668.00
$ 1,335.00
$ 1,335.00 - $ 1,335.00
$ 1,335.00
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 %
$ 1,700.00
$ 1,700.00 - $ 1,700.00
$ 1,700.00
$ 1,361.00
$ 1,361.00 - $ 1,361.00
$ 1,361.00

Foster H6S-102, 3/4" ISO-B Hydraulic Coupler 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 H6S-102 is a steel 3/4" coupler in the FH...

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$ 1,700.00
$ 1,700.00 - $ 1,700.00
$ 1,700.00
$ 1,361.00
$ 1,361.00 - $ 1,361.00
$ 1,361.00
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 %
$ 1,714.00
$ 1,714.00 - $ 1,714.00
$ 1,714.00
$ 1,373.00
$ 1,373.00 - $ 1,373.00
$ 1,373.00

Foster H6S-101, 3/4" ISO-B Hydraulic Coupler 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 H6S-101 is a steel 3/4" coupler in the FH...

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$ 1,714.00
$ 1,714.00 - $ 1,714.00
$ 1,714.00
$ 1,373.00
$ 1,373.00 - $ 1,373.00
$ 1,373.00
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 4,531.00
$ 4,531.00 - $ 4,531.00
$ 4,531.00
$ 3,624.00
$ 3,624.00 - $ 3,624.00
$ 3,624.00

Foster H6S/SLV, 3/4" ISO-B Hydraulic Coupler 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 H6S/SLV is a 303 stainless 3/4" coupler i...

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$ 4,531.00
$ 4,531.00 - $ 4,531.00
$ 4,531.00
$ 3,624.00
$ 3,624.00 - $ 3,624.00
$ 3,624.00
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 %
$ 4,668.00
$ 4,668.00 - $ 4,668.00
$ 4,668.00
$ 3,735.00
$ 3,735.00 - $ 3,735.00
$ 3,735.00

Foster H6S/S-103, 3/4" ISO-B Hydraulic Coupler 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 H6S/S-103 is a 303 stainless 3/4" coupler...

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$ 4,668.00
$ 4,668.00 - $ 4,668.00
$ 4,668.00
$ 3,735.00
$ 3,735.00 - $ 3,735.00
$ 3,735.00
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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$ 4,716.00
$ 4,716.00 - $ 4,716.00
$ 4,716.00
$ 3,773.00
$ 3,773.00 - $ 3,773.00
$ 3,773.00

Foster H6S/S-101, 3/4" ISO-B Hydraulic Coupler 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 H6S/S-101 is a 303 stainless 3/4" coupler...

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$ 4,716.00
$ 4,716.00 - $ 4,716.00
$ 4,716.00
$ 3,773.00
$ 3,773.00 - $ 3,773.00
$ 3,773.00
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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$ 4,445.00
$ 4,445.00 - $ 4,445.00
$ 4,445.00
$ 3,556.00
$ 3,556.00 - $ 3,556.00
$ 3,556.00

Foster H6S/S, 3/4" ISO-B Hydraulic Coupler 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 H6S/S is a 303 stainless 3/4" coupler in ...

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$ 4,445.00
$ 4,445.00 - $ 4,445.00
$ 4,445.00
$ 3,556.00
$ 3,556.00 - $ 3,556.00
$ 3,556.00
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 %
$ 1,519.00
$ 1,519.00 - $ 1,519.00
$ 1,519.00
$ 1,216.00
$ 1,216.00 - $ 1,216.00
$ 1,216.00

Foster H6S, 3/4" ISO-B Hydraulic Coupler 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 H6S is a steel 3/4" coupler in the FHK Se...

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$ 1,519.00
$ 1,519.00 - $ 1,519.00
$ 1,519.00
$ 1,216.00
$ 1,216.00 - $ 1,216.00
$ 1,216.00
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