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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 20% Save %
$ 15.69
$ 15.69 - $ 15.69
$ 15.69
$ 12.59
$ 12.59 - $ 12.59
$ 12.59

Foster 2C7, 5/16" Hose x 1/4" Male NPT Reusable Hose Fitting, 5/8" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/4" male NPT — no crimping needed. The Foster 2C7 accepts 5/16" ID hose (5/8"...

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$ 15.69
$ 15.69 - $ 15.69
$ 15.69
$ 12.59
$ 12.59 - $ 12.59
$ 12.59
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 %
$ 12.49
$ 12.49 - $ 12.49
$ 12.49
$ 9.99
$ 9.99 - $ 9.99
$ 9.99

Foster 2D11, 3/8" Hose x 1/4" Male NPT Reusable Hose Fitting, 3/4" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/4" male NPT — no crimping needed. The Foster 2D11 accepts 3/8" ID hose (3/4"...

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$ 12.49
$ 12.49 - $ 12.49
$ 12.49
$ 9.99
$ 9.99 - $ 9.99
$ 9.99
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 %
$ 18.39
$ 18.39 - $ 18.39
$ 18.39
$ 14.69
$ 14.69 - $ 14.69
$ 14.69

Foster 2B7, 1/4" Hose x 1/4" Male NPT Reusable Hose Fitting, 5/8" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/4" male NPT — no crimping needed. The Foster 2B7 accepts 1/4" ID hose (5/8" ...

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$ 18.39
$ 18.39 - $ 18.39
$ 18.39
$ 14.69
$ 14.69 - $ 14.69
$ 14.69
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 %
$ 10.29
$ 10.29 - $ 10.29
$ 10.29
$ 8.19
$ 8.19 - $ 8.19
$ 8.19

Foster 2B5, 1/4" Hose x 1/4" Male NPT Reusable Hose Fitting, 9/16" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/4" male NPT — no crimping needed. The Foster 2B5 accepts 1/4" ID hose (9/16"...

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$ 10.29
$ 10.29 - $ 10.29
$ 10.29
$ 8.19
$ 8.19 - $ 8.19
$ 8.19
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 %
$ 15.29
$ 15.29 - $ 15.29
$ 15.29
$ 12.19
$ 12.19 - $ 12.19
$ 12.19

Foster 2C5, 5/16" Hose x 1/4" Male NPT Reusable Hose Fitting, 9/16" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/4" male NPT — no crimping needed. The Foster 2C5 accepts 5/16" ID hose (9/16...

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$ 15.29
$ 15.29 - $ 15.29
$ 15.29
$ 12.19
$ 12.19 - $ 12.19
$ 12.19
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 %
$ 10.09
$ 10.09 - $ 10.09
$ 10.09
$ 8.09
$ 8.09 - $ 8.09
$ 8.09

Foster 2B3, 1/4" Hose x 1/4" Male NPT Reusable Hose Fitting, 1/2" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/4" male NPT — no crimping needed. The Foster 2B3 accepts 1/4" ID hose (1/2" ...

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$ 10.09
$ 10.09 - $ 10.09
$ 10.09
$ 8.09
$ 8.09 - $ 8.09
$ 8.09
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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$ 50.89
$ 50.89 - $ 50.89
$ 50.89
$ 40.69
$ 40.69 - $ 40.69
$ 40.69

Foster 2B7S/S, 1/4" Hose x 1/4" Male NPT Reusable Hose Fitting, 5/8" OD, Reusable Series, 303 Stainless

A reusable hose-end fitting that screws onto the hose and threads to 1/4" male NPT — no crimping needed. The Foster 2B7S/S accepts 1/4" ID hose (5/...

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$ 50.89
$ 50.89 - $ 50.89
$ 50.89
$ 40.69
$ 40.69 - $ 40.69
$ 40.69
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 %
$ 14.79
$ 14.79 - $ 14.79
$ 14.79
$ 11.89
$ 11.89 - $ 11.89
$ 11.89

Foster 1B3, 1/4" Hose x 1/8" Male NPT Reusable Hose Fitting, 1/2" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/8" male NPT — no crimping needed. The Foster 1B3 accepts 1/4" ID hose (1/2" ...

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$ 14.79
$ 14.79 - $ 14.79
$ 14.79
$ 11.89
$ 11.89 - $ 11.89
$ 11.89
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 %
$ 16.39
$ 16.39 - $ 16.39
$ 16.39
$ 13.09
$ 13.09 - $ 13.09
$ 13.09

Foster 1B7, 1/4" Hose x 1/8" Male NPT Reusable Hose Fitting, 5/8" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/8" male NPT — no crimping needed. The Foster 1B7 accepts 1/4" ID hose (5/8" ...

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$ 16.39
$ 16.39 - $ 16.39
$ 16.39
$ 13.09
$ 13.09 - $ 13.09
$ 13.09
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 %
$ 15.69
$ 15.69 - $ 15.69
$ 15.69
$ 12.59
$ 12.59 - $ 12.59
$ 12.59

Foster 1B5, 1/4" Hose x 1/8" Male NPT Reusable Hose Fitting, 9/16" OD, Reusable Series, Brass

A reusable hose-end fitting that screws onto the hose and threads to 1/8" male NPT — no crimping needed. The Foster 1B5 accepts 1/4" ID hose (9/16"...

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$ 15.69
$ 15.69 - $ 15.69
$ 15.69
$ 12.59
$ 12.59 - $ 12.59
$ 12.59
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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$ 33.99
$ 33.99 - $ 33.99
$ 33.99
$ 27.19
$ 27.19 - $ 27.19
$ 27.19

Foster USV3103, 1/4" Universal Safety Air Coupler x 1/4" Male NPT, USV Series, Chrome-Plated Steel

A universal safety coupler with a two-step venting disconnect for operator safety: rotate the sleeve to exhaust trapped air, then pull back to rele...

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$ 33.99
$ 33.99 - $ 33.99
$ 33.99
$ 27.19
$ 27.19 - $ 27.19
$ 27.19
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 %
$ 33.99
$ 33.99 - $ 33.99
$ 33.99
$ 27.19
$ 27.19 - $ 27.19
$ 27.19

Foster USV3003, 1/4" Universal Safety Air Coupler x 1/4" Female NPT, USV Series, Chrome-Plated Steel

A universal safety coupler with a two-step venting disconnect for operator safety: rotate the sleeve to exhaust trapped air, then pull back to rele...

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$ 33.99
$ 33.99 - $ 33.99
$ 33.99
$ 27.19
$ 27.19 - $ 27.19
$ 27.19
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 %
$ 11.59
$ 11.59 - $ 11.59
$ 11.59
$ 9.29
$ 9.29 - $ 9.29
$ 9.29

Foster F185, 1/8" Hansen 180 Mini Air Plug x 1/8" Male NPT, F180 Series, Ball Lock, Brass

A miniature ball-lock quick disconnect that delivers high flow with minimal pressure drop in a very small size. Ideal for breathable air, lab, medi...

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$ 11.59
$ 11.59 - $ 11.59
$ 11.59
$ 9.29
$ 9.29 - $ 9.29
$ 9.29
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 %
$ 22.79
$ 22.79 - $ 22.79
$ 22.79
$ 18.29
$ 18.29 - $ 18.29
$ 18.29

Foster F189, 1/8" Hansen 180 Mini Air Coupler x 3/16" Hose ID, F180 Series, Ball Lock, Brass

A miniature ball-lock quick disconnect that delivers high flow with minimal pressure drop in a very small size. Ideal for breathable air, lab, medi...

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$ 22.79
$ 22.79 - $ 22.79
$ 22.79
$ 18.29
$ 18.29 - $ 18.29
$ 18.29
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 %
$ 26.89
$ 26.89 - $ 26.89
$ 26.89
$ 21.49
$ 21.49 - $ 21.49
$ 21.49

Foster F182, 1/8" Hansen 180 Mini Air Coupler x 1/8" Male NPT, F180 Series, Ball Lock, Brass

A miniature ball-lock quick disconnect that delivers high flow with minimal pressure drop in a very small size. Ideal for breathable air, lab, medi...

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$ 26.89
$ 26.89 - $ 26.89
$ 26.89
$ 21.49
$ 21.49 - $ 21.49
$ 21.49
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 %
$ 12.49
$ 12.49 - $ 12.49
$ 12.49
$ 9.99
$ 9.99 - $ 9.99
$ 9.99

Foster F186, 1/8" Hansen 180 Mini Air Coupler x 3/16" Hose ID, F180 Series, Ball Lock, Brass

A miniature ball-lock quick disconnect that delivers high flow with minimal pressure drop in a very small size. Ideal for breathable air, lab, medi...

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$ 12.49
$ 12.49 - $ 12.49
$ 12.49
$ 9.99
$ 9.99 - $ 9.99
$ 9.99
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 %
$ 25.99
$ 25.99 - $ 25.99
$ 25.99
$ 20.79
$ 20.79 - $ 20.79
$ 20.79

Foster F180, 1/8" Hansen 180 Mini Air Plug x 1/8" Male NPT, F180 Series, Ball Lock, Brass

A miniature ball-lock quick disconnect that delivers high flow with minimal pressure drop in a very small size. Ideal for breathable air, lab, medi...

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$ 25.99
$ 25.99 - $ 25.99
$ 25.99
$ 20.79
$ 20.79 - $ 20.79
$ 20.79
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 %
$ 28.19
$ 28.19 - $ 28.19
$ 28.19
$ 22.49
$ 22.49 - $ 22.49
$ 22.49

Foster F184LV, 1/8" Hansen 180 Mini Air Plug x 3/16" Hose ID, F180 Series, Less Valve, Ball Lock, Brass

A miniature ball-lock quick disconnect that delivers high flow with minimal pressure drop in a very small size. Ideal for breathable air, lab, medi...

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$ 28.19
$ 28.19 - $ 28.19
$ 28.19
$ 22.49
$ 22.49 - $ 22.49
$ 22.49
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 %
$ 20.59
$ 20.59 - $ 20.59
$ 20.59
$ 16.49
$ 16.49 - $ 16.49
$ 16.49

Foster O-3603, 1/4" Oxygen Coupler x 1/4" Hose ID, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-3603 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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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 %
$ 20.99
$ 20.99 - $ 20.99
$ 20.99
$ 16.79
$ 16.79 - $ 16.79
$ 16.79

Foster O-3703, 1/4" Oxygen Coupler x 3/8" Hose ID, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-3703 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 20.99
$ 20.99 - $ 20.99
$ 20.99
$ 16.79
$ 16.79 - $ 16.79
$ 16.79
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 %
$ 19.39
$ 19.39 - $ 19.39
$ 19.39
$ 15.49
$ 15.49 - $ 15.49
$ 15.49

Foster O-3103, 1/4" Oxygen Coupler x 1/4" Male NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-3103 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 19.39
$ 19.39 - $ 19.39
$ 19.39
$ 15.49
$ 15.49 - $ 15.49
$ 15.49
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 %
$ 20.79
$ 20.79 - $ 20.79
$ 20.79
$ 16.59
$ 16.59 - $ 16.59
$ 16.59

Foster O-3653, 1/4" Oxygen Coupler x 5/16" Hose ID, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-3653 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 20.79
$ 20.79 - $ 20.79
$ 20.79
$ 16.59
$ 16.59 - $ 16.59
$ 16.59
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 %
$ 19.89
$ 19.89 - $ 19.89
$ 19.89
$ 15.99
$ 15.99 - $ 15.99
$ 15.99

Foster O-3203, 1/4" Oxygen Coupler x 3/8" Female NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-3203 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 19.89
$ 19.89 - $ 19.89
$ 19.89
$ 15.99
$ 15.99 - $ 15.99
$ 15.99
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 %
$ 20.19
$ 20.19 - $ 20.19
$ 20.19
$ 16.09
$ 16.09 - $ 16.09
$ 16.09

Foster O-3303, 1/4" Oxygen Coupler x 3/8" Male NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-3303 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

View full details
$ 20.19
$ 20.19 - $ 20.19
$ 20.19
$ 16.09
$ 16.09 - $ 16.09
$ 16.09
Save 20% Save %

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