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Foster

Foster quick couplers set the standard in pneumatic and hydraulic connections. Part of the ZSI-Foster line, Foster couplers and plugs cover the full range of industrial interchanges and body sizes in steel, brass, and stainless construction. Built for reliable, repeatable connections in air and fluid systems. Shop the full Foster range below.

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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 19% Save %
$ 7.29
$ 7.29 - $ 7.29
$ 7.29
$ 5.89
$ 5.89 - $ 5.89
$ 5.89

Foster FH22MB, 1/4" Snap-Tite H Interchange Plug x 1/4" Male NPT, FH Series, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster FH22MB is a brass 1/4" plug from the FH Series, which in...

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$ 7.29
$ 7.29 - $ 7.29
$ 7.29
$ 5.89
$ 5.89 - $ 5.89
$ 5.89
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 9.09
$ 9.09 - $ 9.09
$ 9.09
$ 7.29
$ 7.29 - $ 7.29
$ 7.29

Foster FH22M, 1/4" Snap-Tite H Interchange Plug x 1/4" Male NPT, FH Series, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster FH22M is a zinc-plated steel 1/4" plug from the FH Serie...

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$ 9.09
$ 9.09 - $ 9.09
$ 9.09
$ 7.29
$ 7.29 - $ 7.29
$ 7.29
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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 %
$ 7.69
$ 7.69 - $ 7.69
$ 7.69
$ 6.19
$ 6.19 - $ 6.19
$ 6.19

Foster FH22FB, 1/4" Snap-Tite H Interchange Plug x 1/4" Female NPT, FH Series, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster FH22FB is a brass 1/4" plug from the FH Series, which in...

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$ 7.69
$ 7.69 - $ 7.69
$ 7.69
$ 6.19
$ 6.19 - $ 6.19
$ 6.19
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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 19% Save %
$ 8.29
$ 8.29 - $ 8.29
$ 8.29
$ 6.69
$ 6.69 - $ 6.69
$ 6.69

Foster FH22F, 1/4" Snap-Tite H Interchange Plug x 1/4" Female NPT, FH Series, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster FH22F is a zinc-plated steel 1/4" plug from the FH Serie...

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$ 8.29
$ 8.29 - $ 8.29
$ 8.29
$ 6.69
$ 6.69 - $ 6.69
$ 6.69
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
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$ 16.49
$ 16.49 - $ 16.49
$ 16.49
$ 13.19
$ 13.19 - $ 13.19
$ 13.19

Foster FH21F, 1/4" Snap-Tite H Interchange Plug x 1/8" Female NPT, FH Series, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster FH21F is a zinc-plated steel 1/4" plug from the FH Serie...

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$ 16.49
$ 16.49 - $ 16.49
$ 16.49
$ 13.19
$ 13.19 - $ 13.19
$ 13.19
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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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$ 72.09
$ 72.09 - $ 72.09
$ 72.09
$ 57.59
$ 57.59 - $ 57.59
$ 57.59

Foster BLFHS4M4B, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS4M4B is a brass 1/2" coupler from the FH Series, wh...

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$ 72.09
$ 72.09 - $ 72.09
$ 72.09
$ 57.59
$ 57.59 - $ 57.59
$ 57.59
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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 %
$ 50.89
$ 50.89 - $ 50.89
$ 50.89
$ 40.69
$ 40.69 - $ 40.69
$ 40.69

Foster BLFHS4M4, 1/2" Snap-Tite H Interchange Coupler x 1/2" Male NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS4M4 is a zinc-plated steel 1/2" coupler from the FH...

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$ 50.89
$ 50.89 - $ 50.89
$ 50.89
$ 40.69
$ 40.69 - $ 40.69
$ 40.69
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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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$ 68.69
$ 68.69 - $ 68.69
$ 68.69
$ 54.89
$ 54.89 - $ 54.89
$ 54.89

Foster BLFHS4F4B, 1/2" Snap-Tite H Interchange Coupler x 1/2" Female NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS4F4B is a brass 1/2" coupler from the FH Series, wh...

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$ 68.69
$ 68.69 - $ 68.69
$ 68.69
$ 54.89
$ 54.89 - $ 54.89
$ 54.89
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 %
$ 48.89
$ 48.89 - $ 48.89
$ 48.89
$ 39.09
$ 39.09 - $ 39.09
$ 39.09

Foster BLFHS4F4, 1/2" Snap-Tite H Interchange Coupler x 1/2" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS4F4 is a zinc-plated steel 1/2" coupler from the FH...

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$ 48.89
$ 48.89 - $ 48.89
$ 48.89
$ 39.09
$ 39.09 - $ 39.09
$ 39.09
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 %
$ 44.89
$ 44.89 - $ 44.89
$ 44.89
$ 35.89
$ 35.89 - $ 35.89
$ 35.89

Foster BLFHS4B, 1/2" Snap-Tite H Interchange Coupler x 1/2" Female NPT, FH Series, Ball Lock, Brass

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS4B is a brass 1/2" coupler from the FH Series, whic...

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$ 44.89
$ 44.89 - $ 44.89
$ 44.89
$ 35.89
$ 35.89 - $ 35.89
$ 35.89
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 %
$ 30.29
$ 30.29 - $ 30.29
$ 30.29
$ 24.29
$ 24.29 - $ 24.29
$ 24.29

Foster BLFHS4, 1/2" Snap-Tite H Interchange Coupler x 1/2" Female NPT, FH Series, Ball Lock, Zinc-Plated Steel

High-flow hydraulic and pneumatic connections proven in gas and fluid handling. The Foster BLFHS4 is a zinc-plated steel 1/2" coupler from the FH S...

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$ 30.29
$ 30.29 - $ 30.29
$ 30.29
$ 24.29
$ 24.29 - $ 24.29
$ 24.29
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 %
$ 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
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 %
$ 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
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 %
$ 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
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 %
$ 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
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 %
$ 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
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 %
$ 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
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 %
$ 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
Save 20% Save %
$ 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
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$ 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 %

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