Skip to content
Fall Ready Sale15% off everything through Oct 31FALLREADY15Tap to apply at checkout →
15% off through Oct 31FALLREADY15Tap to apply →

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.

Filters

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 549.00
$ 549.00 - $ 549.00
$ 549.00
$ 440.00
$ 440.00 - $ 440.00
$ 440.00

Foster K1S/S-101, 1/8" ISO-B Hydraulic Plug x 1/8" 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 K1S/S-101 is a 303 stainless 1/8" plug in...

View full details
$ 549.00
$ 549.00 - $ 549.00
$ 549.00
$ 440.00
$ 440.00 - $ 440.00
$ 440.00
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 %
$ 491.00
$ 491.00 - $ 491.00
$ 491.00
$ 394.00
$ 394.00 - $ 394.00
$ 394.00

Foster K1S/S, 1/8" ISO-B Hydraulic Plug x 1/8" 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 K1S/S is a 303 stainless 1/8" plug in the...

View full details
$ 491.00
$ 491.00 - $ 491.00
$ 491.00
$ 394.00
$ 394.00 - $ 394.00
$ 394.00
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 %
$ 163.00
$ 163.00 - $ 163.00
$ 163.00
$ 131.00
$ 131.00 - $ 131.00
$ 131.00

Foster K1S, 1/8" ISO-B Hydraulic Plug x 1/8" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K1S is a steel 1/8" plug in the FHK Serie...

View full details
$ 163.00
$ 163.00 - $ 163.00
$ 163.00
$ 131.00
$ 131.00 - $ 131.00
$ 131.00
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 %
$ 204.00
$ 204.00 - $ 204.00
$ 204.00
$ 163.00
$ 163.00 - $ 163.00
$ 163.00

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...

View full details
$ 204.00
$ 204.00 - $ 204.00
$ 204.00
$ 163.00
$ 163.00 - $ 163.00
$ 163.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 19% Save %
$ 255.00
$ 255.00 - $ 255.00
$ 255.00
$ 206.00
$ 206.00 - $ 206.00
$ 206.00

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...

View full details
$ 255.00
$ 255.00 - $ 255.00
$ 255.00
$ 206.00
$ 206.00 - $ 206.00
$ 206.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 271.00
$ 271.00 - $ 271.00
$ 271.00
$ 217.00
$ 217.00 - $ 217.00
$ 217.00

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...

View full details
$ 271.00
$ 271.00 - $ 271.00
$ 271.00
$ 217.00
$ 217.00 - $ 217.00
$ 217.00
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 %
$ 184.00
$ 184.00 - $ 184.00
$ 184.00
$ 148.00
$ 148.00 - $ 148.00
$ 148.00

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...

View full details
$ 184.00
$ 184.00 - $ 184.00
$ 184.00
$ 148.00
$ 148.00 - $ 148.00
$ 148.00
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 %
$ 2,118.00
$ 2,118.00 - $ 2,118.00
$ 2,118.00
$ 1,694.00
$ 1,694.00 - $ 1,694.00
$ 1,694.00

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...

View full details
$ 2,118.00
$ 2,118.00 - $ 2,118.00
$ 2,118.00
$ 1,694.00
$ 1,694.00 - $ 1,694.00
$ 1,694.00
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 %
$ 2,402.00
$ 2,402.00 - $ 2,402.00
$ 2,402.00
$ 1,922.00
$ 1,922.00 - $ 1,922.00
$ 1,922.00

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...

View full details
$ 2,402.00
$ 2,402.00 - $ 2,402.00
$ 2,402.00
$ 1,922.00
$ 1,922.00 - $ 1,922.00
$ 1,922.00
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 %
$ 2,415.00
$ 2,415.00 - $ 2,415.00
$ 2,415.00
$ 1,934.00
$ 1,934.00 - $ 1,934.00
$ 1,934.00

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 ...

View full details
$ 2,415.00
$ 2,415.00 - $ 2,415.00
$ 2,415.00
$ 1,934.00
$ 1,934.00 - $ 1,934.00
$ 1,934.00
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 %
$ 7,679.00
$ 7,679.00 - $ 7,679.00
$ 7,679.00
$ 6,143.00
$ 6,143.00 - $ 6,143.00
$ 6,143.00

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...

View full details
$ 7,679.00
$ 7,679.00 - $ 7,679.00
$ 7,679.00
$ 6,143.00
$ 6,143.00 - $ 6,143.00
$ 6,143.00
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 %
$ 7,762.00
$ 7,762.00 - $ 7,762.00
$ 7,762.00
$ 6,210.00
$ 6,210.00 - $ 6,210.00
$ 6,210.00

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...

View full details
$ 7,762.00
$ 7,762.00 - $ 7,762.00
$ 7,762.00
$ 6,210.00
$ 6,210.00 - $ 6,210.00
$ 6,210.00
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 %
$ 7,320.00
$ 7,320.00 - $ 7,320.00
$ 7,320.00
$ 5,857.00
$ 5,857.00 - $ 5,857.00
$ 5,857.00

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...

View full details
$ 7,320.00
$ 7,320.00 - $ 7,320.00
$ 7,320.00
$ 5,857.00
$ 5,857.00 - $ 5,857.00
$ 5,857.00
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 %
$ 2,078.00
$ 2,078.00 - $ 2,078.00
$ 2,078.00
$ 1,662.00
$ 1,662.00 - $ 1,662.00
$ 1,662.00

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...

View full details
$ 2,078.00
$ 2,078.00 - $ 2,078.00
$ 2,078.00
$ 1,662.00
$ 1,662.00 - $ 1,662.00
$ 1,662.00
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 %
$ 3,680.00
$ 3,680.00 - $ 3,680.00
$ 3,680.00
$ 2,943.00
$ 2,943.00 - $ 2,943.00
$ 2,943.00

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 ...

View full details
$ 3,680.00
$ 3,680.00 - $ 3,680.00
$ 3,680.00
$ 2,943.00
$ 2,943.00 - $ 2,943.00
$ 2,943.00
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 %
$ 3,634.00
$ 3,634.00 - $ 3,634.00
$ 3,634.00
$ 2,908.00
$ 2,908.00 - $ 2,908.00
$ 2,908.00

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 ...

View full details
$ 3,634.00
$ 3,634.00 - $ 3,634.00
$ 3,634.00
$ 2,908.00
$ 2,908.00 - $ 2,908.00
$ 2,908.00
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 %
$ 3,282.00
$ 3,282.00 - $ 3,282.00
$ 3,282.00
$ 2,626.00
$ 2,626.00 - $ 2,626.00
$ 2,626.00

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...

View full details
$ 3,282.00
$ 3,282.00 - $ 3,282.00
$ 3,282.00
$ 2,626.00
$ 2,626.00 - $ 2,626.00
$ 2,626.00
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 %
$ 1,723.00
$ 1,723.00 - $ 1,723.00
$ 1,723.00
$ 1,378.00
$ 1,378.00 - $ 1,378.00
$ 1,378.00

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 ...

View full details
$ 1,723.00
$ 1,723.00 - $ 1,723.00
$ 1,723.00
$ 1,378.00
$ 1,378.00 - $ 1,378.00
$ 1,378.00
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 %
$ 1,759.00
$ 1,759.00 - $ 1,759.00
$ 1,759.00
$ 1,408.00
$ 1,408.00 - $ 1,408.00
$ 1,408.00

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 ...

View full details
$ 1,759.00
$ 1,759.00 - $ 1,759.00
$ 1,759.00
$ 1,408.00
$ 1,408.00 - $ 1,408.00
$ 1,408.00
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 %
$ 1,855.00
$ 1,855.00 - $ 1,855.00
$ 1,855.00
$ 1,485.00
$ 1,485.00 - $ 1,485.00
$ 1,485.00

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...

View full details
$ 1,855.00
$ 1,855.00 - $ 1,855.00
$ 1,855.00
$ 1,485.00
$ 1,485.00 - $ 1,485.00
$ 1,485.00
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 %
$ 1,892.00
$ 1,892.00 - $ 1,892.00
$ 1,892.00
$ 1,514.00
$ 1,514.00 - $ 1,514.00
$ 1,514.00

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...

View full details
$ 1,892.00
$ 1,892.00 - $ 1,892.00
$ 1,892.00
$ 1,514.00
$ 1,514.00 - $ 1,514.00
$ 1,514.00
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 %
$ 1,907.00
$ 1,907.00 - $ 1,907.00
$ 1,907.00
$ 1,527.00
$ 1,527.00 - $ 1,527.00
$ 1,527.00

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...

View full details
$ 1,907.00
$ 1,907.00 - $ 1,907.00
$ 1,907.00
$ 1,527.00
$ 1,527.00 - $ 1,527.00
$ 1,527.00
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 %
$ 5,042.00
$ 5,042.00 - $ 5,042.00
$ 5,042.00
$ 4,033.00
$ 4,033.00 - $ 4,033.00
$ 4,033.00

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...

View full details
$ 5,042.00
$ 5,042.00 - $ 5,042.00
$ 5,042.00
$ 4,033.00
$ 4,033.00 - $ 4,033.00
$ 4,033.00
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 %
$ 5,193.00
$ 5,193.00 - $ 5,193.00
$ 5,193.00
$ 4,155.00
$ 4,155.00 - $ 4,155.00
$ 4,155.00

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...

View full details
$ 5,193.00
$ 5,193.00 - $ 5,193.00
$ 5,193.00
$ 4,155.00
$ 4,155.00 - $ 4,155.00
$ 4,155.00
Save 20% Save %

Request a Quote

Bulk and dealer pricing. Tell us what you need and we’ll reply within one business day.