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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 %
$ 363.00
$ 363.00 - $ 363.00
$ 363.00
$ 289.00
$ 289.00 - $ 289.00
$ 289.00

Foster O-3003LV, 1/4" Oxygen Coupler x 1/4" Female NPT, O60 Series (Hansen 600), Less Valve, Brass

Brass quick couplers for oxygen and gas service. The Foster O-3003LV is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 coup...

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$ 363.00
$ 363.00 - $ 363.00
$ 363.00
$ 289.00
$ 289.00 - $ 289.00
$ 289.00
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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 %
$ 402.00
$ 402.00 - $ 402.00
$ 402.00
$ 321.00
$ 321.00 - $ 321.00
$ 321.00

Foster O-2803, 1/4" Oxygen Coupler x 1/8" Female NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-2803 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 402.00
$ 402.00 - $ 402.00
$ 402.00
$ 321.00
$ 321.00 - $ 321.00
$ 321.00
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 %
$ 345.00
$ 345.00 - $ 345.00
$ 345.00
$ 277.00
$ 277.00 - $ 277.00
$ 277.00

Foster O-3003, 1/4" Oxygen Coupler x 1/4" Female NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-3003 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 345.00
$ 345.00 - $ 345.00
$ 345.00
$ 277.00
$ 277.00 - $ 277.00
$ 277.00
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 %
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00

Foster O-1713, 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-1713 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 403.00
$ 403.00 - $ 403.00
$ 403.00
$ 322.00
$ 322.00 - $ 322.00
$ 322.00
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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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$ 145.00
$ 145.00 - $ 145.00
$ 145.00
$ 116.00
$ 116.00 - $ 116.00
$ 116.00

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

Brass quick couplers for oxygen and gas service. The Foster O-16 is a 1/4" plug from the O60 Series, which interchanges with Hansen 600 couplers. D...

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$ 145.00
$ 145.00 - $ 145.00
$ 145.00
$ 116.00
$ 116.00 - $ 116.00
$ 116.00
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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 %
$ 381.00
$ 381.00 - $ 381.00
$ 381.00
$ 305.00
$ 305.00 - $ 305.00
$ 305.00

Foster O-1513, 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-1513 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 381.00
$ 381.00 - $ 381.00
$ 381.00
$ 305.00
$ 305.00 - $ 305.00
$ 305.00
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 %
$ 342.00
$ 342.00 - $ 342.00
$ 342.00
$ 273.00
$ 273.00 - $ 273.00
$ 273.00

Foster O-2903, 1/4" Oxygen Coupler x 1/8" Male NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-2903 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 couple...

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$ 342.00
$ 342.00 - $ 342.00
$ 342.00
$ 273.00
$ 273.00 - $ 273.00
$ 273.00
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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$ 159.00
$ 159.00 - $ 159.00
$ 159.00
$ 127.00
$ 127.00 - $ 127.00
$ 127.00

Foster O-11, 1/4" Oxygen Plug x 1/4" Female NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-11 is a 1/4" plug from the O60 Series, which interchanges with Hansen 600 couplers. D...

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$ 159.00
$ 159.00 - $ 159.00
$ 159.00
$ 127.00
$ 127.00 - $ 127.00
$ 127.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 146.00
$ 146.00 - $ 146.00
$ 146.00
$ 116.00
$ 116.00 - $ 116.00
$ 116.00

Foster O-17, 1/4" Oxygen Plug x 3/8" Hose ID, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-17 is a 1/4" plug from the O60 Series, which interchanges with Hansen 600 couplers. D...

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$ 146.00
$ 146.00 - $ 146.00
$ 146.00
$ 116.00
$ 116.00 - $ 116.00
$ 116.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 131.00
$ 131.00 - $ 131.00
$ 131.00
$ 104.00
$ 104.00 - $ 104.00
$ 104.00

Foster O-12, 1/4" Oxygen Plug x 1/8" Male NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-12 is a 1/4" plug from the O60 Series, which interchanges with Hansen 600 couplers. D...

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$ 131.00
$ 131.00 - $ 131.00
$ 131.00
$ 104.00
$ 104.00 - $ 104.00
$ 104.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 444.00
$ 444.00 - $ 444.00
$ 444.00
$ 356.00
$ 356.00 - $ 356.00
$ 356.00

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

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

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$ 444.00
$ 444.00 - $ 444.00
$ 444.00
$ 356.00
$ 356.00 - $ 356.00
$ 356.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 21% Save %
$ 120.00
$ 120.00 - $ 120.00
$ 120.00
$ 95.00
$ 95.00 - $ 95.00
$ 95.00

Foster O-10, 1/4" Oxygen Plug x 1/4" Male NPT, O60 Series (Hansen 600), Brass

Brass quick couplers for oxygen and gas service. The Foster O-10 is a 1/4" plug from the O60 Series, which interchanges with Hansen 600 couplers. D...

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$ 120.00
$ 120.00 - $ 120.00
$ 120.00
$ 95.00
$ 95.00 - $ 95.00
$ 95.00
Save 21% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 447.00
$ 447.00 - $ 447.00
$ 447.00
$ 358.00
$ 358.00 - $ 358.00
$ 358.00

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

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

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$ 447.00
$ 447.00 - $ 447.00
$ 447.00
$ 358.00
$ 358.00 - $ 358.00
$ 358.00
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 %
$ 440.00
$ 440.00 - $ 440.00
$ 440.00
$ 352.00
$ 352.00 - $ 352.00
$ 352.00

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

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

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$ 440.00
$ 440.00 - $ 440.00
$ 440.00
$ 352.00
$ 352.00 - $ 352.00
$ 352.00
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 %
$ 437.00
$ 437.00 - $ 437.00
$ 437.00
$ 349.00
$ 349.00 - $ 349.00
$ 349.00

Foster BLO-3003, 1/4" Oxygen Coupler x 1/4" Female NPT, O60 Series (Hansen 600), Ball Lock, Brass

Brass quick couplers for oxygen and gas service. The Foster BLO-3003 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 coup...

View full details
$ 437.00
$ 437.00 - $ 437.00
$ 437.00
$ 349.00
$ 349.00 - $ 349.00
$ 349.00
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 %
$ 460.00
$ 460.00 - $ 460.00
$ 460.00
$ 366.00
$ 366.00 - $ 366.00
$ 366.00

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

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

View full details
$ 460.00
$ 460.00 - $ 460.00
$ 460.00
$ 366.00
$ 366.00 - $ 366.00
$ 366.00
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 %
$ 451.00
$ 451.00 - $ 451.00
$ 451.00
$ 361.00
$ 361.00 - $ 361.00
$ 361.00

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

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

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$ 451.00
$ 451.00 - $ 451.00
$ 451.00
$ 361.00
$ 361.00 - $ 361.00
$ 361.00
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 %
$ 567.00
$ 567.00 - $ 567.00
$ 567.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00

Foster BLA-3653, 1/4" Acetylene Coupler x 5/16" Hose ID, A70 Series (Hansen 700), Ball Lock, Brass

Brass quick couplers for acetylene and gas service. The Foster BLA-3653 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 c...

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$ 567.00
$ 567.00 - $ 567.00
$ 567.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00
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 %
$ 433.00
$ 433.00 - $ 433.00
$ 433.00
$ 347.00
$ 347.00 - $ 347.00
$ 347.00

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

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

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$ 433.00
$ 433.00 - $ 433.00
$ 433.00
$ 347.00
$ 347.00 - $ 347.00
$ 347.00
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 %
$ 463.00
$ 463.00 - $ 463.00
$ 463.00
$ 370.00
$ 370.00 - $ 370.00
$ 370.00

Foster BLA-3703, 1/4" Acetylene Coupler x 3/8" Hose ID, A70 Series (Hansen 700), Ball Lock, Brass

Brass quick couplers for acetylene and gas service. The Foster BLA-3703 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 c...

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$ 463.00
$ 463.00 - $ 463.00
$ 463.00
$ 370.00
$ 370.00 - $ 370.00
$ 370.00
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 %
$ 430.00
$ 430.00 - $ 430.00
$ 430.00
$ 344.00
$ 344.00 - $ 344.00
$ 344.00

Foster BLO-2903, 1/4" Oxygen Coupler x 1/8" Male NPT, O60 Series (Hansen 600), Ball Lock, Brass

Brass quick couplers for oxygen and gas service. The Foster BLO-2903 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 coup...

View full details
$ 430.00
$ 430.00 - $ 430.00
$ 430.00
$ 344.00
$ 344.00 - $ 344.00
$ 344.00
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 %
$ 433.00
$ 433.00 - $ 433.00
$ 433.00
$ 347.00
$ 347.00 - $ 347.00
$ 347.00

Foster BLO-2803, 1/4" Oxygen Coupler x 1/8" Female NPT, O60 Series (Hansen 600), Ball Lock, Brass

Brass quick couplers for oxygen and gas service. The Foster BLO-2803 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 coup...

View full details
$ 433.00
$ 433.00 - $ 433.00
$ 433.00
$ 347.00
$ 347.00 - $ 347.00
$ 347.00
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 %
$ 477.00
$ 477.00 - $ 477.00
$ 477.00
$ 382.00
$ 382.00 - $ 382.00
$ 382.00

Foster BLO-1713, 1/4" Oxygen Coupler x 3/8" Hose ID, O60 Series (Hansen 600), Ball Lock, Brass

Brass quick couplers for oxygen and gas service. The Foster BLO-1713 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 coup...

View full details
$ 477.00
$ 477.00 - $ 477.00
$ 477.00
$ 382.00
$ 382.00 - $ 382.00
$ 382.00
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 %
$ 474.00
$ 474.00 - $ 474.00
$ 474.00
$ 379.00
$ 379.00 - $ 379.00
$ 379.00

Foster BLO-1513, 1/4" Oxygen Coupler x 1/4" Hose ID, O60 Series (Hansen 600), Ball Lock, Brass

Brass quick couplers for oxygen and gas service. The Foster BLO-1513 is a 1/4" coupler from the O60 Series, which interchanges with Hansen 600 coup...

View full details
$ 474.00
$ 474.00 - $ 474.00
$ 474.00
$ 379.00
$ 379.00 - $ 379.00
$ 379.00
Save 20% Save %

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