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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 %
$ 5,226.00
$ 5,226.00 - $ 5,226.00
$ 5,226.00
$ 4,180.00
$ 4,180.00 - $ 4,180.00
$ 4,180.00

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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$ 5,226.00
$ 5,226.00 - $ 5,226.00
$ 5,226.00
$ 4,180.00
$ 4,180.00 - $ 4,180.00
$ 4,180.00
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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 %
$ 4,926.00
$ 4,926.00 - $ 4,926.00
$ 4,926.00
$ 3,940.00
$ 3,940.00 - $ 3,940.00
$ 3,940.00

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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$ 4,926.00
$ 4,926.00 - $ 4,926.00
$ 4,926.00
$ 3,940.00
$ 3,940.00 - $ 3,940.00
$ 3,940.00
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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 %
$ 1,683.00
$ 1,683.00 - $ 1,683.00
$ 1,683.00
$ 1,347.00
$ 1,347.00 - $ 1,347.00
$ 1,347.00

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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$ 1,683.00
$ 1,683.00 - $ 1,683.00
$ 1,683.00
$ 1,347.00
$ 1,347.00 - $ 1,347.00
$ 1,347.00
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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 %
$ 2,459.00
$ 2,459.00 - $ 2,459.00
$ 2,459.00
$ 1,968.00
$ 1,968.00 - $ 1,968.00
$ 1,968.00

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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$ 2,459.00
$ 2,459.00 - $ 2,459.00
$ 2,459.00
$ 1,968.00
$ 1,968.00 - $ 1,968.00
$ 1,968.00
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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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$ 2,346.00
$ 2,346.00 - $ 2,346.00
$ 2,346.00
$ 1,878.00
$ 1,878.00 - $ 1,878.00
$ 1,878.00

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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$ 2,346.00
$ 2,346.00 - $ 2,346.00
$ 2,346.00
$ 1,878.00
$ 1,878.00 - $ 1,878.00
$ 1,878.00
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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 %
$ 2,499.00
$ 2,499.00 - $ 2,499.00
$ 2,499.00
$ 2,001.00
$ 2,001.00 - $ 2,001.00
$ 2,001.00

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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$ 2,499.00
$ 2,499.00 - $ 2,499.00
$ 2,499.00
$ 2,001.00
$ 2,001.00 - $ 2,001.00
$ 2,001.00
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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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$ 2,148.00
$ 2,148.00 - $ 2,148.00
$ 2,148.00
$ 1,718.00
$ 1,718.00 - $ 1,718.00
$ 1,718.00

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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$ 2,148.00
$ 2,148.00 - $ 2,148.00
$ 2,148.00
$ 1,718.00
$ 1,718.00 - $ 1,718.00
$ 1,718.00
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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$ 1,070.00
$ 1,070.00 - $ 1,070.00
$ 1,070.00
$ 856.00
$ 856.00 - $ 856.00
$ 856.00

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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$ 1,070.00
$ 1,070.00 - $ 1,070.00
$ 1,070.00
$ 856.00
$ 856.00 - $ 856.00
$ 856.00
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 %
$ 1,108.00
$ 1,108.00 - $ 1,108.00
$ 1,108.00
$ 887.00
$ 887.00 - $ 887.00
$ 887.00

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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$ 1,108.00
$ 1,108.00 - $ 1,108.00
$ 1,108.00
$ 887.00
$ 887.00 - $ 887.00
$ 887.00
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 %
$ 1,181.00
$ 1,181.00 - $ 1,181.00
$ 1,181.00
$ 944.00
$ 944.00 - $ 944.00
$ 944.00

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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$ 1,181.00
$ 1,181.00 - $ 1,181.00
$ 1,181.00
$ 944.00
$ 944.00 - $ 944.00
$ 944.00
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 %
$ 3,183.00
$ 3,183.00 - $ 3,183.00
$ 3,183.00
$ 2,547.00
$ 2,547.00 - $ 2,547.00
$ 2,547.00

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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$ 3,183.00
$ 3,183.00 - $ 3,183.00
$ 3,183.00
$ 2,547.00
$ 2,547.00 - $ 2,547.00
$ 2,547.00
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 %
$ 3,139.00
$ 3,139.00 - $ 3,139.00
$ 3,139.00
$ 2,511.00
$ 2,511.00 - $ 2,511.00
$ 2,511.00

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...

View full details
$ 3,139.00
$ 3,139.00 - $ 3,139.00
$ 3,139.00
$ 2,511.00
$ 2,511.00 - $ 2,511.00
$ 2,511.00
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 %
$ 3,028.00
$ 3,028.00 - $ 3,028.00
$ 3,028.00
$ 2,423.00
$ 2,423.00 - $ 2,423.00
$ 2,423.00

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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$ 3,028.00
$ 3,028.00 - $ 3,028.00
$ 3,028.00
$ 2,423.00
$ 2,423.00 - $ 2,423.00
$ 2,423.00
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 %
$ 956.00
$ 956.00 - $ 956.00
$ 956.00
$ 765.00
$ 765.00 - $ 765.00
$ 765.00

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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$ 956.00
$ 956.00 - $ 956.00
$ 956.00
$ 765.00
$ 765.00 - $ 765.00
$ 765.00
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 %
$ 1,382.00
$ 1,382.00 - $ 1,382.00
$ 1,382.00
$ 1,106.00
$ 1,106.00 - $ 1,106.00
$ 1,106.00

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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$ 1,382.00
$ 1,382.00 - $ 1,382.00
$ 1,382.00
$ 1,106.00
$ 1,106.00 - $ 1,106.00
$ 1,106.00
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 %
$ 1,366.00
$ 1,366.00 - $ 1,366.00
$ 1,366.00
$ 1,093.00
$ 1,093.00 - $ 1,093.00
$ 1,093.00

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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$ 1,366.00
$ 1,366.00 - $ 1,366.00
$ 1,366.00
$ 1,093.00
$ 1,093.00 - $ 1,093.00
$ 1,093.00
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 %
$ 1,456.00
$ 1,456.00 - $ 1,456.00
$ 1,456.00
$ 1,166.00
$ 1,166.00 - $ 1,166.00
$ 1,166.00

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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$ 1,456.00
$ 1,456.00 - $ 1,456.00
$ 1,456.00
$ 1,166.00
$ 1,166.00 - $ 1,166.00
$ 1,166.00
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 %
$ 1,219.00
$ 1,219.00 - $ 1,219.00
$ 1,219.00
$ 975.00
$ 975.00 - $ 975.00
$ 975.00

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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$ 1,219.00
$ 1,219.00 - $ 1,219.00
$ 1,219.00
$ 975.00
$ 975.00 - $ 975.00
$ 975.00
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 %
$ 858.00
$ 858.00 - $ 858.00
$ 858.00
$ 686.00
$ 686.00 - $ 686.00
$ 686.00

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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$ 858.00
$ 858.00 - $ 858.00
$ 858.00
$ 686.00
$ 686.00 - $ 686.00
$ 686.00
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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$ 868.00
$ 868.00 - $ 868.00
$ 868.00
$ 696.00
$ 696.00 - $ 696.00
$ 696.00

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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$ 868.00
$ 868.00 - $ 868.00
$ 868.00
$ 696.00
$ 696.00 - $ 696.00
$ 696.00
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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$ 829.00
$ 829.00 - $ 829.00
$ 829.00
$ 663.00
$ 663.00 - $ 663.00
$ 663.00

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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$ 829.00
$ 829.00 - $ 829.00
$ 829.00
$ 663.00
$ 663.00 - $ 663.00
$ 663.00
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
$ 690.00
$ 690.00 - $ 690.00
$ 690.00

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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$ 862.00
$ 862.00 - $ 862.00
$ 862.00
$ 690.00
$ 690.00 - $ 690.00
$ 690.00
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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$ 852.00
$ 852.00 - $ 852.00
$ 852.00
$ 682.00
$ 682.00 - $ 682.00
$ 682.00

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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$ 852.00
$ 852.00 - $ 852.00
$ 852.00
$ 682.00
$ 682.00 - $ 682.00
$ 682.00
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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$ 1,825.00
$ 1,825.00 - $ 1,825.00
$ 1,825.00
$ 1,460.00
$ 1,460.00 - $ 1,460.00
$ 1,460.00

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...

View full details
$ 1,825.00
$ 1,825.00 - $ 1,825.00
$ 1,825.00
$ 1,460.00
$ 1,460.00 - $ 1,460.00
$ 1,460.00
Save 20% Save %

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