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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 %
$ 49.89
$ 49.89 - $ 49.89
$ 49.89
$ 39.89
$ 39.89 - $ 39.89
$ 39.89

Foster BLFHS3M3B, 3/8" Snap-Tite H Interchange Coupler x 3/8" Male NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS3M3B is a brass 3/8" coupler from the FH Series, wh...

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$ 49.89
$ 49.89 - $ 49.89
$ 49.89
$ 39.89
$ 39.89 - $ 39.89
$ 39.89
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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 %
$ 84.39
$ 84.39 - $ 84.39
$ 84.39
$ 67.59
$ 67.59 - $ 67.59
$ 67.59

Foster BLFHS3M3, 3/8" Snap-Tite H Interchange Coupler x 3/8" Male NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS3M3 is a zinc-plated steel 3/8" coupler from the FH...

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$ 84.39
$ 84.39 - $ 84.39
$ 84.39
$ 67.59
$ 67.59 - $ 67.59
$ 67.59
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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 %
$ 75.19
$ 75.19 - $ 75.19
$ 75.19
$ 60.19
$ 60.19 - $ 60.19
$ 60.19

Foster BLFHS3F3, 3/8" Snap-Tite H Interchange Coupler x 3/8" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS3F3 is a zinc-plated steel 3/8" coupler from the FH...

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$ 75.19
$ 75.19 - $ 75.19
$ 75.19
$ 60.19
$ 60.19 - $ 60.19
$ 60.19
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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 %
$ 26.79
$ 26.79 - $ 26.79
$ 26.79
$ 21.39
$ 21.39 - $ 21.39
$ 21.39

Foster BLFHS3, 3/8" Snap-Tite H Interchange Coupler x 3/8" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS3 is a zinc-plated steel 3/8" coupler from the FH S...

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$ 26.79
$ 26.79 - $ 26.79
$ 26.79
$ 21.39
$ 21.39 - $ 21.39
$ 21.39
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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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$ 40.69
$ 40.69 - $ 40.69
$ 40.69
$ 32.59
$ 32.59 - $ 32.59
$ 32.59

Foster BLFHS2M2B, 1/4" Snap-Tite H Interchange Coupler x 1/4" Male NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2M2B is a brass 1/4" coupler from the FH Series, wh...

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$ 40.69
$ 40.69 - $ 40.69
$ 40.69
$ 32.59
$ 32.59 - $ 32.59
$ 32.59
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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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$ 32.29
$ 32.29 - $ 32.29
$ 32.29
$ 25.79
$ 25.79 - $ 25.79
$ 25.79

Foster BLFHS2M2, 1/4" Snap-Tite H Interchange Coupler x 1/4" Male NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2M2 is a zinc-plated steel 1/4" coupler from the FH...

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$ 32.29
$ 32.29 - $ 32.29
$ 32.29
$ 25.79
$ 25.79 - $ 25.79
$ 25.79
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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 %
$ 39.29
$ 39.29 - $ 39.29
$ 39.29
$ 31.49
$ 31.49 - $ 31.49
$ 31.49

Foster BLFHS2F2B, 1/4" Snap-Tite H Interchange Coupler x 1/4" Female NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2F2B is a brass 1/4" coupler from the FH Series, wh...

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$ 39.29
$ 39.29 - $ 39.29
$ 39.29
$ 31.49
$ 31.49 - $ 31.49
$ 31.49
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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$ 30.09
$ 30.09 - $ 30.09
$ 30.09
$ 24.09
$ 24.09 - $ 24.09
$ 24.09

Foster BLFHS2F2, 1/4" Snap-Tite H Interchange Coupler x 1/4" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2F2 is a zinc-plated steel 1/4" coupler from the FH...

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$ 30.09
$ 30.09 - $ 30.09
$ 30.09
$ 24.09
$ 24.09 - $ 24.09
$ 24.09
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 %
$ 25.79
$ 25.79 - $ 25.79
$ 25.79
$ 20.59
$ 20.59 - $ 20.59
$ 20.59

Foster BLFHS2B, 1/4" Snap-Tite H Interchange Coupler x 1/4" Female NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS2B is a brass 1/4" coupler from the FH Series, whic...

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$ 25.79
$ 25.79 - $ 25.79
$ 25.79
$ 20.59
$ 20.59 - $ 20.59
$ 20.59
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 %
$ 79.19
$ 79.19 - $ 79.19
$ 79.19
$ 63.29
$ 63.29 - $ 63.29
$ 63.29

Foster BL38FSS, 3/8" Straight-Thru Coupler x 3/8" 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 BL38FSS is a 303 stainless 3/8" straight-...

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$ 79.19
$ 79.19 - $ 79.19
$ 79.19
$ 63.29
$ 63.29 - $ 63.29
$ 63.29
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 %
$ 130.39
$ 130.39 - $ 130.39
$ 130.39
$ 104.29
$ 104.29 - $ 104.29
$ 104.29

Foster BL75FSS, 3/4" Straight-Thru Coupler x 3/4" 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 BL75FSS is a 303 stainless 3/4" straight-...

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$ 130.39
$ 130.39 - $ 130.39
$ 130.39
$ 104.29
$ 104.29 - $ 104.29
$ 104.29
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 %
$ 46.89
$ 46.89 - $ 46.89
$ 46.89
$ 37.49
$ 37.49 - $ 37.49
$ 37.49

Foster BL75FS, 3/4" Straight-Thru Coupler x 3/4" 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 BL75FS is a brass 3/4" straight-thru coup...

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$ 46.89
$ 46.89 - $ 46.89
$ 46.89
$ 37.49
$ 37.49 - $ 37.49
$ 37.49
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 %
$ 89.49
$ 89.49 - $ 89.49
$ 89.49
$ 71.59
$ 71.59 - $ 71.59
$ 71.59

Foster BL50FSS, 1/2" Straight-Thru Coupler x 1/2" 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 BL50FSS is a 303 stainless 1/2" straight-...

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$ 89.49
$ 89.49 - $ 89.49
$ 89.49
$ 71.59
$ 71.59 - $ 71.59
$ 71.59
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 %
$ 30.89
$ 30.89 - $ 30.89
$ 30.89
$ 24.69
$ 24.69 - $ 24.69
$ 24.69

Foster BL50FS, 1/2" Straight-Thru Coupler x 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 BL50FS is a brass 1/2" straight-thru coup...

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$ 30.89
$ 30.89 - $ 30.89
$ 30.89
$ 24.69
$ 24.69 - $ 24.69
$ 24.69
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 %
$ 23.89
$ 23.89 - $ 23.89
$ 23.89
$ 19.09
$ 19.09 - $ 19.09
$ 19.09

Foster BL38FS, 3/8" Straight-Thru Coupler x 3/8" 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 BL38FS is a brass 3/8" straight-thru coup...

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$ 23.89
$ 23.89 - $ 23.89
$ 23.89
$ 19.09
$ 19.09 - $ 19.09
$ 19.09
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 %
$ 73.49
$ 73.49 - $ 73.49
$ 73.49
$ 58.79
$ 58.79 - $ 58.79
$ 58.79

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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$ 73.49
$ 73.49 - $ 73.49
$ 73.49
$ 58.79
$ 58.79 - $ 58.79
$ 58.79
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 %
$ 20.59
$ 20.59 - $ 20.59
$ 20.59
$ 16.49
$ 16.49 - $ 16.49
$ 16.49

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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$ 20.59
$ 20.59 - $ 20.59
$ 20.59
$ 16.49
$ 16.49 - $ 16.49
$ 16.49
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 %
$ 301.29
$ 301.29 - $ 301.29
$ 301.29
$ 240.99
$ 240.99 - $ 240.99
$ 240.99

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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$ 301.29
$ 301.29 - $ 301.29
$ 301.29
$ 240.99
$ 240.99 - $ 240.99
$ 240.99
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 %
$ 47.79
$ 47.79 - $ 47.79
$ 47.79
$ 38.19
$ 38.19 - $ 38.19
$ 38.19

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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$ 47.79
$ 47.79 - $ 47.79
$ 47.79
$ 38.19
$ 38.19 - $ 38.19
$ 38.19
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 %
$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79

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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$ 18.49
$ 18.49 - $ 18.49
$ 18.49
$ 14.79
$ 14.79 - $ 14.79
$ 14.79
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 %
$ 173.59
$ 173.59 - $ 173.59
$ 173.59
$ 138.89
$ 138.89 - $ 138.89
$ 138.89

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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$ 173.59
$ 173.59 - $ 173.59
$ 173.59
$ 138.89
$ 138.89 - $ 138.89
$ 138.89
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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$ 188.79
$ 188.79 - $ 188.79
$ 188.79
$ 150.99
$ 150.99 - $ 150.99
$ 150.99

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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$ 188.79
$ 188.79 - $ 188.79
$ 188.79
$ 150.99
$ 150.99 - $ 150.99
$ 150.99
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 %
$ 64.79
$ 64.79 - $ 64.79
$ 64.79
$ 51.79
$ 51.79 - $ 51.79
$ 51.79

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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$ 64.79
$ 64.79 - $ 64.79
$ 64.79
$ 51.79
$ 51.79 - $ 51.79
$ 51.79
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 %
$ 17.39
$ 17.39 - $ 17.39
$ 17.39
$ 13.89
$ 13.89 - $ 13.89
$ 13.89

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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$ 17.39
$ 17.39 - $ 17.39
$ 17.39
$ 13.89
$ 13.89 - $ 13.89
$ 13.89
Save 20% Save %

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