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☀️ Take an Additional 10% Off Your Entire Order with code GEARUP10 at checkout.
☀️ Additional 10% Off • GEARUP10

Foster 310 Series Couplers

Foster 310 Series pneumatic quick couplers and plugs, interchangeable with ARO 310 Series 3/8" body air fittings. Rated 300 PSI, one-way shut-off, with manual or automatic sockets. Brass/steel, 303 stainless, and nickel-plated options; steel plugs.

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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 %
$ 646.00
$ 646.00 - $ 646.00
$ 646.00
$ 517.00
$ 517.00 - $ 517.00
$ 517.00

Foster 310-SD9, 3/8" ARO Coupler x Reusable Hose Clamp Fitting, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-SD9 is a brass and steel 3/8" coupler from th...

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$ 646.00
$ 646.00 - $ 646.00
$ 646.00
$ 517.00
$ 517.00 - $ 517.00
$ 517.00
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 %
$ 641.00
$ 641.00 - $ 641.00
$ 641.00
$ 513.00
$ 513.00 - $ 513.00
$ 513.00

Foster 310-SD7, 3/8" ARO Coupler x Reusable Hose Clamp Fitting, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-SD7 is a brass and steel 3/8" coupler from th...

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$ 641.00
$ 641.00 - $ 641.00
$ 641.00
$ 513.00
$ 513.00 - $ 513.00
$ 513.00
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 %
$ 660.00
$ 660.00 - $ 660.00
$ 660.00
$ 527.00
$ 527.00 - $ 527.00
$ 527.00

Foster 310-SD13, 3/8" ARO Coupler x Reusable Hose Clamp Fitting, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-SD13 is a brass and steel 3/8" coupler from t...

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$ 660.00
$ 660.00 - $ 660.00
$ 660.00
$ 527.00
$ 527.00 - $ 527.00
$ 527.00
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 %
$ 648.00
$ 648.00 - $ 648.00
$ 648.00
$ 518.00
$ 518.00 - $ 518.00
$ 518.00

Foster 310-SD11, 3/8" ARO Coupler x Reusable Hose Clamp Fitting, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-SD11 is a brass and steel 3/8" coupler from t...

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$ 648.00
$ 648.00 - $ 648.00
$ 648.00
$ 518.00
$ 518.00 - $ 518.00
$ 518.00
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 %
$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00

Foster 310-SB7, 3/8" ARO Coupler x Reusable Hose Clamp Fitting, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-SB7 is a brass and steel 3/8" coupler from th...

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$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
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 %
$ 689.00
$ 689.00 - $ 689.00
$ 689.00
$ 553.00
$ 553.00 - $ 553.00
$ 553.00

Foster 310-SB5, 3/8" ARO Coupler x Reusable Hose Clamp Fitting, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-SB5 is a brass and steel 3/8" coupler from th...

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$ 689.00
$ 689.00 - $ 689.00
$ 689.00
$ 553.00
$ 553.00 - $ 553.00
$ 553.00
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 %
$ 689.00
$ 689.00 - $ 689.00
$ 689.00
$ 553.00
$ 553.00 - $ 553.00
$ 553.00

Foster 310-SB3, 3/8" ARO Coupler x Reusable Hose Clamp Fitting, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-SB3 is a brass and steel 3/8" coupler from th...

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$ 689.00
$ 689.00 - $ 689.00
$ 689.00
$ 553.00
$ 553.00 - $ 553.00
$ 553.00
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 %
$ 784.00
$ 784.00 - $ 784.00
$ 784.00
$ 627.00
$ 627.00 - $ 627.00
$ 627.00

Foster 310M-4904, 3/8" ARO Coupler x 1/2" Hose ID, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4904 is a brass and steel 3/8" coupler from ...

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$ 784.00
$ 784.00 - $ 784.00
$ 784.00
$ 627.00
$ 627.00 - $ 627.00
$ 627.00
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 %
$ 778.00
$ 778.00 - $ 778.00
$ 778.00
$ 622.00
$ 622.00 - $ 622.00
$ 622.00

Foster 310M-4804NP, 3/8" ARO Coupler x 3/8" Hose ID, 310 Series, Manual, Nickel-Plated Brass/Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4804NP is a nickel-plated brass/steel 3/8" c...

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$ 778.00
$ 778.00 - $ 778.00
$ 778.00
$ 622.00
$ 622.00 - $ 622.00
$ 622.00
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 %
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
$ 448.00
$ 448.00 - $ 448.00
$ 448.00

Foster 310M-4804, 3/8" ARO Coupler x 3/8" Hose ID, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4804 is a brass and steel 3/8" coupler from ...

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$ 558.00
$ 558.00 - $ 558.00
$ 558.00
$ 448.00
$ 448.00 - $ 448.00
$ 448.00
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 %
$ 674.00
$ 674.00 - $ 674.00
$ 674.00
$ 539.00
$ 539.00 - $ 539.00
$ 539.00

Foster 310M-4704, 3/8" ARO Coupler x 5/16" Hose ID, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4704 is a brass and steel 3/8" coupler from ...

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$ 674.00
$ 674.00 - $ 674.00
$ 674.00
$ 539.00
$ 539.00 - $ 539.00
$ 539.00
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 %
$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00

Foster 310M-4504, 3/8" ARO Coupler x 1/2" Male NPT, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4504 is a brass and steel 3/8" coupler from ...

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$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
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 %
$ 722.00
$ 722.00 - $ 722.00
$ 722.00
$ 577.00
$ 577.00 - $ 577.00
$ 577.00

Foster 310M-4404, 3/8" ARO Coupler x 1/2" Female NPT, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4404 is a brass and steel 3/8" coupler from ...

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$ 722.00
$ 722.00 - $ 722.00
$ 722.00
$ 577.00
$ 577.00 - $ 577.00
$ 577.00
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 %
$ 847.00
$ 847.00 - $ 847.00
$ 847.00
$ 677.00
$ 677.00 - $ 677.00
$ 677.00

Foster 310M-4304NP, 3/8" ARO Coupler x 3/8" Male NPT, 310 Series, Manual, Nickel-Plated Brass/Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4304NP is a nickel-plated brass/steel 3/8" c...

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$ 847.00
$ 847.00 - $ 847.00
$ 847.00
$ 677.00
$ 677.00 - $ 677.00
$ 677.00
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 %
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
$ 446.00
$ 446.00 - $ 446.00
$ 446.00

Foster 310M-4304, 3/8" ARO Coupler x 3/8" Male NPT, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4304 is a brass and steel 3/8" coupler from ...

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$ 558.00
$ 558.00 - $ 558.00
$ 558.00
$ 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 %
$ 722.00
$ 722.00 - $ 722.00
$ 722.00
$ 577.00
$ 577.00 - $ 577.00
$ 577.00

Foster 310M-4204NP, 3/8" ARO Coupler x 3/8" Female NPT, 310 Series, Manual, Nickel-Plated Brass/Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4204NP is a nickel-plated brass/steel 3/8" c...

View full details
$ 722.00
$ 722.00 - $ 722.00
$ 722.00
$ 577.00
$ 577.00 - $ 577.00
$ 577.00
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 %
$ 683.00
$ 683.00 - $ 683.00
$ 683.00
$ 546.00
$ 546.00 - $ 546.00
$ 546.00

Foster 310M-4204, 3/8" ARO Coupler x 3/8" Female NPT, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4204 is a brass and steel 3/8" coupler from ...

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$ 683.00
$ 683.00 - $ 683.00
$ 683.00
$ 546.00
$ 546.00 - $ 546.00
$ 546.00
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 %
$ 729.00
$ 729.00 - $ 729.00
$ 729.00
$ 582.00
$ 582.00 - $ 582.00
$ 582.00

Foster 310M-4104, 3/8" ARO Coupler x 1/4" Male NPT, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4104 is a brass and steel 3/8" coupler from ...

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$ 729.00
$ 729.00 - $ 729.00
$ 729.00
$ 582.00
$ 582.00 - $ 582.00
$ 582.00
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 %
$ 702.00
$ 702.00 - $ 702.00
$ 702.00
$ 562.00
$ 562.00 - $ 562.00
$ 562.00

Foster 310M-4004, 3/8" ARO Coupler x 1/4" Female NPT, 310 Series, Manual, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310M-4004 is a brass and steel 3/8" coupler from ...

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$ 702.00
$ 702.00 - $ 702.00
$ 702.00
$ 562.00
$ 562.00 - $ 562.00
$ 562.00
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 %
$ 577.00
$ 577.00 - $ 577.00
$ 577.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00

Foster 310-4904, 3/8" ARO Coupler x 1/2" Hose ID, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4904 is a brass and steel 3/8" coupler from t...

View full details
$ 577.00
$ 577.00 - $ 577.00
$ 577.00
$ 461.00
$ 461.00 - $ 461.00
$ 461.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 19% Save %
$ 135.00
$ 135.00 - $ 135.00
$ 135.00
$ 109.00
$ 109.00 - $ 109.00
$ 109.00

Foster 310-49, 3/8" ARO Plug x 1/2" Hose ID, 310 Series, Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-49 is a steel 3/8" plug from the Foster 310 S...

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$ 135.00
$ 135.00 - $ 135.00
$ 135.00
$ 109.00
$ 109.00 - $ 109.00
$ 109.00
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 %
$ 567.00
$ 567.00 - $ 567.00
$ 567.00
$ 455.00
$ 455.00 - $ 455.00
$ 455.00

Foster 310-4804, 3/8" ARO Coupler x 3/8" Hose ID, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4804 is a brass and steel 3/8" coupler from t...

View full details
$ 567.00
$ 567.00 - $ 567.00
$ 567.00
$ 455.00
$ 455.00 - $ 455.00
$ 455.00
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 %
$ 154.00
$ 154.00 - $ 154.00
$ 154.00
$ 123.00
$ 123.00 - $ 123.00
$ 123.00

Foster 310-48, 3/8" ARO Plug x 3/8" Hose ID, 310 Series, Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-48 is a steel 3/8" plug from the Foster 310 S...

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$ 154.00
$ 154.00 - $ 154.00
$ 154.00
$ 123.00
$ 123.00 - $ 123.00
$ 123.00
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 %
$ 582.00
$ 582.00 - $ 582.00
$ 582.00
$ 467.00
$ 467.00 - $ 467.00
$ 467.00

Foster 310-4704, 3/8" ARO Coupler x 5/16" Hose ID, 310 Series, Automatic, Brass and Steel

Reliable 3/8" air connections that interchange with ARO 310 Series couplers and plugs. The Foster 310-4704 is a brass and steel 3/8" coupler from t...

View full details
$ 582.00
$ 582.00 - $ 582.00
$ 582.00
$ 467.00
$ 467.00 - $ 467.00
$ 467.00
Save 20% Save %

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