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

Pneumatic Quick Couplers

Pneumatic quick couplers connect and disconnect air lines in one quick motion, no tools required. This collection covers the full range of air quick couplers and plugs across every interchange, from miniature 2 Series to industrial body sizes, in steel, brass, and stainless. Filter by series, body size, thread, and material to find the exact coupler or plug your air system needs.

Filters

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...

View full details
$ 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 Save 20% Save %
$ 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...

View full details
$ 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 20% Save %
$ 146.00
$ 146.00 - $ 146.00
$ 146.00
$ 117.00
$ 117.00 - $ 117.00
$ 117.00

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...

View full details
$ 146.00
$ 146.00 - $ 146.00
$ 146.00
$ 117.00
$ 117.00 - $ 117.00
$ 117.00
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 %
$ 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...

View full details
$ 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...

View full details
$ 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...

View full details
$ 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 %
$ 448.00
$ 448.00 - $ 448.00
$ 448.00
$ 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...

View full details
$ 448.00
$ 448.00 - $ 448.00
$ 448.00
$ 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...

View full details
$ 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
$ 367.00
$ 367.00 - $ 367.00
$ 367.00

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
$ 367.00
$ 367.00 - $ 367.00
$ 367.00
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...

View full details
$ 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
$ 455.00
$ 455.00 - $ 455.00
$ 455.00

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...

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 %
$ 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...

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 %
$ 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...

View full details
$ 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 %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 458.00
$ 458.00 - $ 458.00
$ 458.00
$ 367.00
$ 367.00 - $ 367.00
$ 367.00

Foster BLA-3303, 1/4" Acetylene Coupler x 3/8" Male NPT, A70 Series (Hansen 700), Ball Lock, Brass

Brass quick couplers for acetylene and gas service. The Foster BLA-3303 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 c...

View full details
$ 458.00
$ 458.00 - $ 458.00
$ 458.00
$ 367.00
$ 367.00 - $ 367.00
$ 367.00
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 %
$ 446.00
$ 446.00 - $ 446.00
$ 446.00
$ 356.00
$ 356.00 - $ 356.00
$ 356.00

Foster BLA-3103, 1/4" Acetylene Coupler x 1/4" Male NPT, A70 Series (Hansen 700), Ball Lock, Brass

Brass quick couplers for acetylene and gas service. The Foster BLA-3103 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 c...

View full details
$ 446.00
$ 446.00 - $ 446.00
$ 446.00
$ 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 20% Save %
$ 465.00
$ 465.00 - $ 465.00
$ 465.00
$ 372.00
$ 372.00 - $ 372.00
$ 372.00

Foster BLA-3603, 1/4" Acetylene Coupler x 1/4" Hose ID, A70 Series (Hansen 700), Ball Lock, Brass

Brass quick couplers for acetylene and gas service. The Foster BLA-3603 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 c...

View full details
$ 465.00
$ 465.00 - $ 465.00
$ 465.00
$ 372.00
$ 372.00 - $ 372.00
$ 372.00
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 %
$ 444.00
$ 444.00 - $ 444.00
$ 444.00
$ 354.00
$ 354.00 - $ 354.00
$ 354.00

Foster BLA-3003, 1/4" Acetylene Coupler x 1/4" Female NPT, A70 Series (Hansen 700), Ball Lock, Brass

Brass quick couplers for acetylene and gas service. The Foster BLA-3003 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 c...

View full details
$ 444.00
$ 444.00 - $ 444.00
$ 444.00
$ 354.00
$ 354.00 - $ 354.00
$ 354.00
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 %
$ 465.00
$ 465.00 - $ 465.00
$ 465.00
$ 372.00
$ 372.00 - $ 372.00
$ 372.00

Foster BLA-3203, 1/4" Acetylene Coupler x 3/8" Female NPT, A70 Series (Hansen 700), Ball Lock, Brass

Brass quick couplers for acetylene and gas service. The Foster BLA-3203 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 c...

View full details
$ 465.00
$ 465.00 - $ 465.00
$ 465.00
$ 372.00
$ 372.00 - $ 372.00
$ 372.00
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 %
$ 539.00
$ 539.00 - $ 539.00
$ 539.00
$ 432.00
$ 432.00 - $ 432.00
$ 432.00

Foster BLA-2903, 1/4" Acetylene Coupler x 1/8" Male NPT, A70 Series (Hansen 700), Ball Lock, Brass

Brass quick couplers for acetylene and gas service. The Foster BLA-2903 is a 1/4" coupler from the A70 Series, which interchanges with Hansen 700 c...

View full details
$ 539.00
$ 539.00 - $ 539.00
$ 539.00
$ 432.00
$ 432.00 - $ 432.00
$ 432.00
Save 20% Save %

Request a Quote

Bulk and dealer pricing. Tell us what you need and we’ll reply within one business day.