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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 %
$ 1,401.00
$ 1,401.00 - $ 1,401.00
$ 1,401.00
$ 1,121.00
$ 1,121.00 - $ 1,121.00
$ 1,121.00

Foster BL25FSS, 1/4" Straight-Thru Coupler x 1/4" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL25FSS is a 303 stainless 1/4" straight-...

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$ 1,401.00
$ 1,401.00 - $ 1,401.00
$ 1,401.00
$ 1,121.00
$ 1,121.00 - $ 1,121.00
$ 1,121.00
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 %
$ 393.00
$ 393.00 - $ 393.00
$ 393.00
$ 315.00
$ 315.00 - $ 315.00
$ 315.00

Foster BL25FS, 1/4" Straight-Thru Coupler x 1/4" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL25FS is a brass 1/4" straight-thru coup...

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$ 393.00
$ 393.00 - $ 393.00
$ 393.00
$ 315.00
$ 315.00 - $ 315.00
$ 315.00
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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 %
$ 5,744.00
$ 5,744.00 - $ 5,744.00
$ 5,744.00
$ 4,594.00
$ 4,594.00 - $ 4,594.00
$ 4,594.00

Foster BL150FS, 1-1/2" Straight-Thru Coupler x 1-1/2" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL150FS is a brass 1-1/2" straight-thru c...

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$ 5,744.00
$ 5,744.00 - $ 5,744.00
$ 5,744.00
$ 4,594.00
$ 4,594.00 - $ 4,594.00
$ 4,594.00
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 %
$ 912.00
$ 912.00 - $ 912.00
$ 912.00
$ 729.00
$ 729.00 - $ 729.00
$ 729.00

Foster BL12FSS, 1/8" Straight-Thru Coupler x 1/8" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL12FSS is a 303 stainless 1/8" straight-...

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$ 912.00
$ 912.00 - $ 912.00
$ 912.00
$ 729.00
$ 729.00 - $ 729.00
$ 729.00
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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$ 353.00
$ 353.00 - $ 353.00
$ 353.00
$ 282.00
$ 282.00 - $ 282.00
$ 282.00

Foster BL12FS, 1/8" Straight-Thru Coupler x 1/8" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL12FS is a brass 1/8" straight-thru coup...

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$ 353.00
$ 353.00 - $ 353.00
$ 353.00
$ 282.00
$ 282.00 - $ 282.00
$ 282.00
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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 %
$ 3,310.00
$ 3,310.00 - $ 3,310.00
$ 3,310.00
$ 2,648.00
$ 2,648.00 - $ 2,648.00
$ 2,648.00

Foster BL125FS, 1-1/4" Straight-Thru Coupler x 1-1/4" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL125FS is a brass 1-1/4" straight-thru c...

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$ 3,310.00
$ 3,310.00 - $ 3,310.00
$ 3,310.00
$ 2,648.00
$ 2,648.00 - $ 2,648.00
$ 2,648.00
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 %
$ 3,599.00
$ 3,599.00 - $ 3,599.00
$ 3,599.00
$ 2,879.00
$ 2,879.00 - $ 2,879.00
$ 2,879.00

Foster BL100FSS, 1" Straight-Thru Coupler x 1" Female NPT, FST Series, Ball Lock, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL100FSS is a 303 stainless 1" straight-t...

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$ 3,599.00
$ 3,599.00 - $ 3,599.00
$ 3,599.00
$ 2,879.00
$ 2,879.00 - $ 2,879.00
$ 2,879.00
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 %
$ 1,236.00
$ 1,236.00 - $ 1,236.00
$ 1,236.00
$ 988.00
$ 988.00 - $ 988.00
$ 988.00

Foster BL100FS, 1" Straight-Thru Coupler x 1" Female NPT, FST Series, Ball Lock, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster BL100FS is a brass 1" straight-thru coupl...

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$ 1,236.00
$ 1,236.00 - $ 1,236.00
$ 1,236.00
$ 988.00
$ 988.00 - $ 988.00
$ 988.00
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 %
$ 332.00
$ 332.00 - $ 332.00
$ 332.00
$ 265.00
$ 265.00 - $ 265.00
$ 265.00

Foster 75HPB, 3/4" Straight-Thru Plug x 3/4" Hose ID, FST Series, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75HPB is a brass 3/4" straight-thru plug ...

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$ 332.00
$ 332.00 - $ 332.00
$ 332.00
$ 265.00
$ 265.00 - $ 265.00
$ 265.00
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 %
$ 2,336.00
$ 2,336.00 - $ 2,336.00
$ 2,336.00
$ 1,868.00
$ 1,868.00 - $ 1,868.00
$ 1,868.00

Foster 75FSS-103, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, EPDM Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FSS-103 is a 303 stainless 3/4" straigh...

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$ 2,336.00
$ 2,336.00 - $ 2,336.00
$ 2,336.00
$ 1,868.00
$ 1,868.00 - $ 1,868.00
$ 1,868.00
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 %
$ 2,301.00
$ 2,301.00 - $ 2,301.00
$ 2,301.00
$ 1,840.00
$ 1,840.00 - $ 1,840.00
$ 1,840.00

Foster 75FSS-101, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Viton Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FSS-101 is a 303 stainless 3/4" straigh...

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$ 2,301.00
$ 2,301.00 - $ 2,301.00
$ 2,301.00
$ 1,840.00
$ 1,840.00 - $ 1,840.00
$ 1,840.00
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 %
$ 2,231.00
$ 2,231.00 - $ 2,231.00
$ 2,231.00
$ 1,785.00
$ 1,785.00 - $ 1,785.00
$ 1,785.00

Foster 75FSS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FSS is a 303 stainless 3/4" straight-th...

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$ 2,231.00
$ 2,231.00 - $ 2,231.00
$ 2,231.00
$ 1,785.00
$ 1,785.00 - $ 1,785.00
$ 1,785.00
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 %
$ 788.00
$ 788.00 - $ 788.00
$ 788.00
$ 631.00
$ 631.00 - $ 631.00
$ 631.00

Foster 75FS-104, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Silicone Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FS-104 is a brass 3/4" straight-thru co...

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$ 788.00
$ 788.00 - $ 788.00
$ 788.00
$ 631.00
$ 631.00 - $ 631.00
$ 631.00
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 %
$ 757.00
$ 757.00 - $ 757.00
$ 757.00
$ 607.00
$ 607.00 - $ 607.00
$ 607.00

Foster 75FS-103, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, EPDM Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FS-103 is a brass 3/4" straight-thru co...

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$ 757.00
$ 757.00 - $ 757.00
$ 757.00
$ 607.00
$ 607.00 - $ 607.00
$ 607.00
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 %
$ 770.00
$ 770.00 - $ 770.00
$ 770.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00

Foster 75FS-101, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Viton Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FS-101 is a brass 3/4" straight-thru co...

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$ 770.00
$ 770.00 - $ 770.00
$ 770.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00
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 %
$ 679.00
$ 679.00 - $ 679.00
$ 679.00
$ 544.00
$ 544.00 - $ 544.00
$ 544.00

Foster 75FS, 3/4" Straight-Thru Coupler x 3/4" Female NPT, FST Series, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FS is a brass 3/4" straight-thru couple...

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$ 679.00
$ 679.00 - $ 679.00
$ 679.00
$ 544.00
$ 544.00 - $ 544.00
$ 544.00
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 %
$ 938.00
$ 938.00 - $ 938.00
$ 938.00
$ 749.00
$ 749.00 - $ 749.00
$ 749.00

Foster 75FPS, 3/4" Straight-Thru Plug x 3/4" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FPS is a 303 stainless 3/4" straight-th...

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$ 938.00
$ 938.00 - $ 938.00
$ 938.00
$ 749.00
$ 749.00 - $ 749.00
$ 749.00
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 %
$ 235.00
$ 235.00 - $ 235.00
$ 235.00
$ 187.00
$ 187.00 - $ 187.00
$ 187.00

Foster 75FP, 3/4" Straight-Thru Plug x 3/4" Female NPT, FST Series, Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 75FP is a steel 3/4" straight-thru plug i...

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$ 235.00
$ 235.00 - $ 235.00
$ 235.00
$ 187.00
$ 187.00 - $ 187.00
$ 187.00
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 %
$ 1,567.00
$ 1,567.00 - $ 1,567.00
$ 1,567.00
$ 1,255.00
$ 1,255.00 - $ 1,255.00
$ 1,255.00

Foster 50FSS-103, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, EPDM Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FSS-103 is a 303 stainless 1/2" straigh...

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$ 1,567.00
$ 1,567.00 - $ 1,567.00
$ 1,567.00
$ 1,255.00
$ 1,255.00 - $ 1,255.00
$ 1,255.00
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 %
$ 1,541.00
$ 1,541.00 - $ 1,541.00
$ 1,541.00
$ 1,234.00
$ 1,234.00 - $ 1,234.00
$ 1,234.00

Foster 50FSS-101, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Viton Seal, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FSS-101 is a 303 stainless 1/2" straigh...

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$ 1,541.00
$ 1,541.00 - $ 1,541.00
$ 1,541.00
$ 1,234.00
$ 1,234.00 - $ 1,234.00
$ 1,234.00
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 %
$ 1,487.00
$ 1,487.00 - $ 1,487.00
$ 1,487.00
$ 1,190.00
$ 1,190.00 - $ 1,190.00
$ 1,190.00

Foster 50FSS, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FSS is a 303 stainless 1/2" straight-th...

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$ 1,487.00
$ 1,487.00 - $ 1,487.00
$ 1,487.00
$ 1,190.00
$ 1,190.00 - $ 1,190.00
$ 1,190.00
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 %
$ 473.00
$ 473.00 - $ 473.00
$ 473.00
$ 380.00
$ 380.00 - $ 380.00
$ 380.00

Foster 50FS-103, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, EPDM Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FS-103 is a brass 1/2" straight-thru co...

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$ 473.00
$ 473.00 - $ 473.00
$ 473.00
$ 380.00
$ 380.00 - $ 380.00
$ 380.00
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 %
$ 481.00
$ 481.00 - $ 481.00
$ 481.00
$ 385.00
$ 385.00 - $ 385.00
$ 385.00

Foster 50FS-101, 1/2" Straight-Thru Coupler x 1/2" Female NPT, FST Series, Viton Seal, Brass

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FS-101 is a brass 1/2" straight-thru co...

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$ 481.00
$ 481.00 - $ 481.00
$ 481.00
$ 385.00
$ 385.00 - $ 385.00
$ 385.00
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 %
$ 673.00
$ 673.00 - $ 673.00
$ 673.00
$ 538.00
$ 538.00 - $ 538.00
$ 538.00

Foster 50FPS, 1/2" Straight-Thru Plug x 1/2" Female NPT, FST Series, 303 Stainless Steel

Maximum flow with no restriction, for air and fluid lines where shut-off is handled elsewhere. The Foster 50FPS is a 303 stainless 1/2" straight-th...

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$ 673.00
$ 673.00 - $ 673.00
$ 673.00
$ 538.00
$ 538.00 - $ 538.00
$ 538.00
Save 20% Save %

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