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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 %
$ 803.00
$ 803.00 - $ 803.00
$ 803.00
$ 643.00
$ 643.00 - $ 643.00
$ 643.00

Foster H3B-102, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3B-102 is a brass 3/8" coupler in the FH...

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$ 803.00
$ 803.00 - $ 803.00
$ 803.00
$ 643.00
$ 643.00 - $ 643.00
$ 643.00
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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 %
$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 631.00
$ 631.00 - $ 631.00
$ 631.00

Foster H3B-101, 3/8" ISO-B Hydraulic Coupler x 3/8" 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 H3B-101 is a brass 3/8" coupler in the FH...

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$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 631.00
$ 631.00 - $ 631.00
$ 631.00
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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 %
$ 668.00
$ 668.00 - $ 668.00
$ 668.00
$ 536.00
$ 536.00 - $ 536.00
$ 536.00

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

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

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$ 668.00
$ 668.00 - $ 668.00
$ 668.00
$ 536.00
$ 536.00 - $ 536.00
$ 536.00
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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 %
$ 518.00
$ 518.00 - $ 518.00
$ 518.00
$ 414.00
$ 414.00 - $ 414.00
$ 414.00

Foster H2S6, 1/4" ISO-B Hydraulic Coupler x 9/16"-18 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H2S6 is a steel 1/4" coupler in the FHK S...

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$ 518.00
$ 518.00 - $ 518.00
$ 518.00
$ 414.00
$ 414.00 - $ 414.00
$ 414.00
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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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$ 522.00
$ 522.00 - $ 522.00
$ 522.00
$ 417.00
$ 417.00 - $ 417.00
$ 417.00

Foster H2S-104, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S-104 is a steel 1/4" coupler in the FH...

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$ 522.00
$ 522.00 - $ 522.00
$ 522.00
$ 417.00
$ 417.00 - $ 417.00
$ 417.00
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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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$ 509.00
$ 509.00 - $ 509.00
$ 509.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00

Foster H2S-103, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S-103 is a steel 1/4" coupler in the FH...

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$ 509.00
$ 509.00 - $ 509.00
$ 509.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00
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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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$ 506.00
$ 506.00 - $ 506.00
$ 506.00
$ 405.00
$ 405.00 - $ 405.00
$ 405.00

Foster H2S-101, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S-101 is a steel 1/4" coupler in the FH...

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$ 506.00
$ 506.00 - $ 506.00
$ 506.00
$ 405.00
$ 405.00 - $ 405.00
$ 405.00
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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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$ 1,223.00
$ 1,223.00 - $ 1,223.00
$ 1,223.00
$ 979.00
$ 979.00 - $ 979.00
$ 979.00

Foster H2S/SLV, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S/SLV is a 303 stainless 1/4" coupler i...

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$ 1,223.00
$ 1,223.00 - $ 1,223.00
$ 1,223.00
$ 979.00
$ 979.00 - $ 979.00
$ 979.00
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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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$ 1,320.00
$ 1,320.00 - $ 1,320.00
$ 1,320.00
$ 1,057.00
$ 1,057.00 - $ 1,057.00
$ 1,057.00

Foster H2S/S-104, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Silicone Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H2S/S-104 is a 303 stainless 1/4" coupler...

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$ 1,320.00
$ 1,320.00 - $ 1,320.00
$ 1,320.00
$ 1,057.00
$ 1,057.00 - $ 1,057.00
$ 1,057.00
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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$ 1,296.00
$ 1,296.00 - $ 1,296.00
$ 1,296.00
$ 1,038.00
$ 1,038.00 - $ 1,038.00
$ 1,038.00

Foster H2S/S-103, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S/S-103 is a 303 stainless 1/4" coupler...

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$ 1,296.00
$ 1,296.00 - $ 1,296.00
$ 1,296.00
$ 1,038.00
$ 1,038.00 - $ 1,038.00
$ 1,038.00
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 %
$ 1,269.00
$ 1,269.00 - $ 1,269.00
$ 1,269.00
$ 1,015.00
$ 1,015.00 - $ 1,015.00
$ 1,015.00

Foster H2S/S-101, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S/S-101 is a 303 stainless 1/4" coupler...

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$ 1,269.00
$ 1,269.00 - $ 1,269.00
$ 1,269.00
$ 1,015.00
$ 1,015.00 - $ 1,015.00
$ 1,015.00
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 %
$ 1,223.00
$ 1,223.00 - $ 1,223.00
$ 1,223.00
$ 979.00
$ 979.00 - $ 979.00
$ 979.00

Foster H2S/S, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2S/S is a 303 stainless 1/4" coupler in ...

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$ 1,223.00
$ 1,223.00 - $ 1,223.00
$ 1,223.00
$ 979.00
$ 979.00 - $ 979.00
$ 979.00
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 %
$ 435.00
$ 435.00 - $ 435.00
$ 435.00
$ 348.00
$ 348.00 - $ 348.00
$ 348.00

Foster H2S, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H2S is a steel 1/4" coupler in the FHK Se...

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$ 435.00
$ 435.00 - $ 435.00
$ 435.00
$ 348.00
$ 348.00 - $ 348.00
$ 348.00
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 %
$ 477.00
$ 477.00 - $ 477.00
$ 477.00
$ 382.00
$ 382.00 - $ 382.00
$ 382.00

Foster H2BLV, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2BLV is a brass 1/4" coupler in the FHK ...

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$ 477.00
$ 477.00 - $ 477.00
$ 477.00
$ 382.00
$ 382.00 - $ 382.00
$ 382.00
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 H2B-103, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2B-103 is a brass 1/4" coupler in the FH...

View full details
$ 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 %
$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 469.00
$ 469.00 - $ 469.00
$ 469.00

Foster H2B-102, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2B-102 is a brass 1/4" coupler in the FH...

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$ 585.00
$ 585.00 - $ 585.00
$ 585.00
$ 469.00
$ 469.00 - $ 469.00
$ 469.00
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 %
$ 557.00
$ 557.00 - $ 557.00
$ 557.00
$ 446.00
$ 446.00 - $ 446.00
$ 446.00

Foster H2B-101, 1/4" ISO-B Hydraulic Coupler x 1/4" 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 H2B-101 is a brass 1/4" coupler in the FH...

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$ 557.00
$ 557.00 - $ 557.00
$ 557.00
$ 446.00
$ 446.00 - $ 446.00
$ 446.00
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 %
$ 469.00
$ 469.00 - $ 469.00
$ 469.00
$ 375.00
$ 375.00 - $ 375.00
$ 375.00

Foster H2B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H2B is a brass 1/4" coupler in the FHK Se...

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$ 469.00
$ 469.00 - $ 469.00
$ 469.00
$ 375.00
$ 375.00 - $ 375.00
$ 375.00
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 %
$ 499.00
$ 499.00 - $ 499.00
$ 499.00
$ 400.00
$ 400.00 - $ 400.00
$ 400.00

Foster H1S4, 1/8" ISO-B Hydraulic Coupler x 7/16"-20 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1S4 is a steel 1/8" coupler in the FHK S...

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$ 499.00
$ 499.00 - $ 499.00
$ 499.00
$ 400.00
$ 400.00 - $ 400.00
$ 400.00
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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 %
$ 492.00
$ 492.00 - $ 492.00
$ 492.00
$ 393.00
$ 393.00 - $ 393.00
$ 393.00

Foster H1S-101, 1/8" ISO-B Hydraulic Coupler x 1/8" 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 H1S-101 is a steel 1/8" coupler in the FH...

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$ 492.00
$ 492.00 - $ 492.00
$ 492.00
$ 393.00
$ 393.00 - $ 393.00
$ 393.00
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 %
$ 1,288.00
$ 1,288.00 - $ 1,288.00
$ 1,288.00
$ 1,030.00
$ 1,030.00 - $ 1,030.00
$ 1,030.00

Foster H1S/S-104, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Silicone Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster H1S/S-104 is a 303 stainless 1/8" coupler...

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$ 1,288.00
$ 1,288.00 - $ 1,288.00
$ 1,288.00
$ 1,030.00
$ 1,030.00 - $ 1,030.00
$ 1,030.00
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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$ 1,281.00
$ 1,281.00 - $ 1,281.00
$ 1,281.00
$ 1,025.00
$ 1,025.00 - $ 1,025.00
$ 1,025.00

Foster H1S/S-101, 1/8" ISO-B Hydraulic Coupler 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 H1S/S-101 is a 303 stainless 1/8" coupler...

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$ 1,281.00
$ 1,281.00 - $ 1,281.00
$ 1,281.00
$ 1,025.00
$ 1,025.00 - $ 1,025.00
$ 1,025.00
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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$ 1,182.00
$ 1,182.00 - $ 1,182.00
$ 1,182.00
$ 946.00
$ 946.00 - $ 946.00
$ 946.00

Foster H1S/S, 1/8" ISO-B Hydraulic Coupler 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 H1S/S is a 303 stainless 1/8" coupler in ...

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$ 1,182.00
$ 1,182.00 - $ 1,182.00
$ 1,182.00
$ 946.00
$ 946.00 - $ 946.00
$ 946.00
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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$ 401.00
$ 401.00 - $ 401.00
$ 401.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00

Foster H1S, 1/8" ISO-B Hydraulic Coupler 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 H1S is a steel 1/8" coupler in the FHK Se...

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$ 401.00
$ 401.00 - $ 401.00
$ 401.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00
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