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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 %
$ 2,218.00
$ 2,218.00 - $ 2,218.00
$ 2,218.00
$ 1,775.00
$ 1,775.00 - $ 1,775.00
$ 1,775.00

Foster H6B-104, 3/4" ISO-B Hydraulic Coupler x 3/4" Female NPT, ISO-B Series, Silicone Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H6B-104 is a brass 3/4" coupler in the FH...

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$ 2,218.00
$ 2,218.00 - $ 2,218.00
$ 2,218.00
$ 1,775.00
$ 1,775.00 - $ 1,775.00
$ 1,775.00
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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 %
$ 2,116.00
$ 2,116.00 - $ 2,116.00
$ 2,116.00
$ 1,694.00
$ 1,694.00 - $ 1,694.00
$ 1,694.00

Foster H6B-103, 3/4" ISO-B Hydraulic Coupler 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 H6B-103 is a brass 3/4" coupler in the FH...

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$ 2,116.00
$ 2,116.00 - $ 2,116.00
$ 2,116.00
$ 1,694.00
$ 1,694.00 - $ 1,694.00
$ 1,694.00
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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 %
$ 2,254.00
$ 2,254.00 - $ 2,254.00
$ 2,254.00
$ 1,804.00
$ 1,804.00 - $ 1,804.00
$ 1,804.00

Foster H6B-101, 3/4" ISO-B Hydraulic Coupler 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 H6B-101 is a brass 3/4" coupler in the FH...

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$ 2,254.00
$ 2,254.00 - $ 2,254.00
$ 2,254.00
$ 1,804.00
$ 1,804.00 - $ 1,804.00
$ 1,804.00
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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 %
$ 1,937.00
$ 1,937.00 - $ 1,937.00
$ 1,937.00
$ 1,549.00
$ 1,549.00 - $ 1,549.00
$ 1,549.00

Foster H6B, 3/4" ISO-B Hydraulic Coupler 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 H6B is a brass 3/4" coupler in the FHK Se...

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$ 1,937.00
$ 1,937.00 - $ 1,937.00
$ 1,937.00
$ 1,549.00
$ 1,549.00 - $ 1,549.00
$ 1,549.00
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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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$ 965.00
$ 965.00 - $ 965.00
$ 965.00
$ 772.00
$ 772.00 - $ 772.00
$ 772.00

Foster H4S-103, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 H4S-103 is a steel 1/2" coupler in the FH...

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$ 965.00
$ 965.00 - $ 965.00
$ 965.00
$ 772.00
$ 772.00 - $ 772.00
$ 772.00
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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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$ 1,000.00
$ 1,000.00 - $ 1,000.00
$ 1,000.00
$ 800.00
$ 800.00 - $ 800.00
$ 800.00

Foster H4S-101, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 H4S-101 is a steel 1/2" coupler in the FH...

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$ 1,000.00
$ 1,000.00 - $ 1,000.00
$ 1,000.00
$ 800.00
$ 800.00 - $ 800.00
$ 800.00
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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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$ 1,065.00
$ 1,065.00 - $ 1,065.00
$ 1,065.00
$ 851.00
$ 851.00 - $ 851.00
$ 851.00

Foster H4S10, 1/2" ISO-B Hydraulic Coupler x 7/8"-14 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H4S10 is a steel 1/2" coupler in the FHK ...

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$ 1,065.00
$ 1,065.00 - $ 1,065.00
$ 1,065.00
$ 851.00
$ 851.00 - $ 851.00
$ 851.00
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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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$ 2,870.00
$ 2,870.00 - $ 2,870.00
$ 2,870.00
$ 2,297.00
$ 2,297.00 - $ 2,297.00
$ 2,297.00

Foster H4S/S-103, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 H4S/S-103 is a 303 stainless 1/2" coupler...

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$ 2,870.00
$ 2,870.00 - $ 2,870.00
$ 2,870.00
$ 2,297.00
$ 2,297.00 - $ 2,297.00
$ 2,297.00
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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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$ 2,831.00
$ 2,831.00 - $ 2,831.00
$ 2,831.00
$ 2,264.00
$ 2,264.00 - $ 2,264.00
$ 2,264.00

Foster H4S/S-101, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 H4S/S-101 is a 303 stainless 1/2" coupler...

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$ 2,831.00
$ 2,831.00 - $ 2,831.00
$ 2,831.00
$ 2,264.00
$ 2,264.00 - $ 2,264.00
$ 2,264.00
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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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$ 2,731.00
$ 2,731.00 - $ 2,731.00
$ 2,731.00
$ 2,185.00
$ 2,185.00 - $ 2,185.00
$ 2,185.00

Foster H4S/S, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 H4S/S is a 303 stainless 1/2" coupler in ...

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$ 2,731.00
$ 2,731.00 - $ 2,731.00
$ 2,731.00
$ 2,185.00
$ 2,185.00 - $ 2,185.00
$ 2,185.00
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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$ 862.00
$ 862.00 - $ 862.00
$ 862.00
$ 689.00
$ 689.00 - $ 689.00
$ 689.00

Foster H4S, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H4S is a steel 1/2" coupler in the FHK Se...

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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
Save 20% Save %
$ 1,246.00
$ 1,246.00 - $ 1,246.00
$ 1,246.00
$ 998.00
$ 998.00 - $ 998.00
$ 998.00

Foster H4B-103, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 H4B-103 is a brass 1/2" coupler in the FH...

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$ 1,246.00
$ 1,246.00 - $ 1,246.00
$ 1,246.00
$ 998.00
$ 998.00 - $ 998.00
$ 998.00
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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$ 1,232.00
$ 1,232.00 - $ 1,232.00
$ 1,232.00
$ 986.00
$ 986.00 - $ 986.00
$ 986.00

Foster H4B-102, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Neoprene Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H4B-102 is a brass 1/2" coupler in the FH...

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$ 1,232.00
$ 1,232.00 - $ 1,232.00
$ 1,232.00
$ 986.00
$ 986.00 - $ 986.00
$ 986.00
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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$ 1,313.00
$ 1,313.00 - $ 1,313.00
$ 1,313.00
$ 1,051.00
$ 1,051.00 - $ 1,051.00
$ 1,051.00

Foster H4B-101, 1/2" ISO-B Hydraulic Coupler x 1/2" 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 H4B-101 is a brass 1/2" coupler in the FH...

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$ 1,313.00
$ 1,313.00 - $ 1,313.00
$ 1,313.00
$ 1,051.00
$ 1,051.00 - $ 1,051.00
$ 1,051.00
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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$ 1,099.00
$ 1,099.00 - $ 1,099.00
$ 1,099.00
$ 879.00
$ 879.00 - $ 879.00
$ 879.00

Foster H4B, 1/2" ISO-B Hydraulic Coupler x 1/2" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H4B is a brass 1/2" coupler in the FHK Se...

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$ 1,099.00
$ 1,099.00 - $ 1,099.00
$ 1,099.00
$ 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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$ 774.00
$ 774.00 - $ 774.00
$ 774.00
$ 619.00
$ 619.00 - $ 619.00
$ 619.00

Foster H3S8, 3/8" ISO-B Hydraulic Coupler x 3/4"-16 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H3S8 is a steel 3/8" coupler in the FHK S...

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$ 774.00
$ 774.00 - $ 774.00
$ 774.00
$ 619.00
$ 619.00 - $ 619.00
$ 619.00
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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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$ 782.00
$ 782.00 - $ 782.00
$ 782.00
$ 627.00
$ 627.00 - $ 627.00
$ 627.00

Foster H3S-104, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Silicone Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H3S-104 is a steel 3/8" coupler in the FH...

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$ 782.00
$ 782.00 - $ 782.00
$ 782.00
$ 627.00
$ 627.00 - $ 627.00
$ 627.00
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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$ 748.00
$ 748.00 - $ 748.00
$ 748.00
$ 598.00
$ 598.00 - $ 598.00
$ 598.00

Foster H3S-103, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3S-103 is a steel 3/8" coupler in the FH...

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$ 748.00
$ 748.00 - $ 748.00
$ 748.00
$ 598.00
$ 598.00 - $ 598.00
$ 598.00
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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$ 777.00
$ 777.00 - $ 777.00
$ 777.00
$ 622.00
$ 622.00 - $ 622.00
$ 622.00

Foster H3S-102, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3S-102 is a steel 3/8" coupler in the FH...

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$ 777.00
$ 777.00 - $ 777.00
$ 777.00
$ 622.00
$ 622.00 - $ 622.00
$ 622.00
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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$ 769.00
$ 769.00 - $ 769.00
$ 769.00
$ 615.00
$ 615.00 - $ 615.00
$ 615.00

Foster H3S-101, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3S-101 is a steel 3/8" coupler in the FH...

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$ 769.00
$ 769.00 - $ 769.00
$ 769.00
$ 615.00
$ 615.00 - $ 615.00
$ 615.00
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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$ 1,646.00
$ 1,646.00 - $ 1,646.00
$ 1,646.00
$ 1,317.00
$ 1,317.00 - $ 1,317.00
$ 1,317.00

Foster H3S/S-101, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3S/S-101 is a 303 stainless 3/8" coupler...

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$ 1,646.00
$ 1,646.00 - $ 1,646.00
$ 1,646.00
$ 1,317.00
$ 1,317.00 - $ 1,317.00
$ 1,317.00
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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$ 1,553.00
$ 1,553.00 - $ 1,553.00
$ 1,553.00
$ 1,242.00
$ 1,242.00 - $ 1,242.00
$ 1,242.00

Foster H3S/S, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3S/S is a 303 stainless 3/8" coupler in ...

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$ 1,553.00
$ 1,553.00 - $ 1,553.00
$ 1,553.00
$ 1,242.00
$ 1,242.00 - $ 1,242.00
$ 1,242.00
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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$ 669.00
$ 669.00 - $ 669.00
$ 669.00
$ 536.00
$ 536.00 - $ 536.00
$ 536.00

Foster H3S, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H3S is a steel 3/8" coupler in the FHK Se...

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$ 669.00
$ 669.00 - $ 669.00
$ 669.00
$ 536.00
$ 536.00 - $ 536.00
$ 536.00
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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$ 798.00
$ 798.00 - $ 798.00
$ 798.00
$ 638.00
$ 638.00 - $ 638.00
$ 638.00

Foster H3B-104, 3/8" ISO-B Hydraulic Coupler x 3/8" Female NPT, ISO-B Series, Silicone Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H3B-104 is a brass 3/8" coupler in the FH...

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$ 798.00
$ 798.00 - $ 798.00
$ 798.00
$ 638.00
$ 638.00 - $ 638.00
$ 638.00
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