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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.

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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 %
$ 22.09
$ 22.09 - $ 22.09
$ 22.09
$ 17.59
$ 17.59 - $ 17.59
$ 17.59

Foster BLSB5-3, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 9/16" OD, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BLSB5-3 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series ...

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$ 22.09
$ 22.09 - $ 22.09
$ 22.09
$ 17.59
$ 17.59 - $ 17.59
$ 17.59
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 %
$ 23.69
$ 23.69 - $ 23.69
$ 23.69
$ 18.99
$ 18.99 - $ 18.99
$ 18.99

Foster SB3-3W, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 1/2" OD, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SB3-3W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — th...

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$ 23.69
$ 23.69 - $ 23.69
$ 23.69
$ 18.99
$ 18.99 - $ 18.99
$ 18.99
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 %
$ 109.79
$ 109.79 - $ 109.79
$ 109.79
$ 87.89
$ 87.89 - $ 87.89
$ 87.89

Foster SB3-3S/S, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 1/2" OD, 3 Series, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster SB3-3S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Seri...

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$ 109.79
$ 109.79 - $ 109.79
$ 109.79
$ 87.89
$ 87.89 - $ 87.89
$ 87.89
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 %
$ 26.29
$ 26.29 - $ 26.29
$ 26.29
$ 20.99
$ 20.99 - $ 20.99
$ 20.99

Foster BLSB3-3W, 1/4" Industrial Coupler x Reusable Hose Fitting, 1/4" ID x 1/2" OD, 3 Series, Ball Lock, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BLSB3-3W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — ...

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$ 26.29
$ 26.29 - $ 26.29
$ 26.29
$ 20.99
$ 20.99 - $ 20.99
$ 20.99
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 %
$ 19.79
$ 19.79 - $ 19.79
$ 19.79
$ 15.79
$ 15.79 - $ 15.79
$ 15.79

Foster 3703W, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3703W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 19.79
$ 19.79 - $ 19.79
$ 19.79
$ 15.79
$ 15.79 - $ 15.79
$ 15.79
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 %
$ 72.29
$ 72.29 - $ 72.29
$ 72.29
$ 57.79
$ 57.79 - $ 57.79
$ 57.79

Foster BL3703S/S, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Ball Lock, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3703S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Ser...

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$ 72.29
$ 72.29 - $ 72.29
$ 72.29
$ 57.79
$ 57.79 - $ 57.79
$ 57.79
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 %
$ 68.79
$ 68.79 - $ 68.79
$ 68.79
$ 55.09
$ 55.09 - $ 55.09
$ 55.09

Foster 3703S/S, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3703S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Serie...

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$ 68.79
$ 68.79 - $ 68.79
$ 68.79
$ 55.09
$ 55.09 - $ 55.09
$ 55.09
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 %
$ 19.59
$ 19.59 - $ 19.59
$ 19.59
$ 15.69
$ 15.69 - $ 15.69
$ 15.69

Foster 3703S, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Steam/EPDM, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3703S is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 19.59
$ 19.59 - $ 19.59
$ 19.59
$ 15.69
$ 15.69 - $ 15.69
$ 15.69
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 %
$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.19
$ 14.19 - $ 14.19
$ 14.19

Foster BL3703, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3703 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.19
$ 14.19 - $ 14.19
$ 14.19
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 %
$ 15.69
$ 15.69 - $ 15.69
$ 15.69
$ 12.59
$ 12.59 - $ 12.59
$ 12.59

Foster 3703, 1/4" Industrial Coupler x 3/8" Hose ID, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3703 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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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 %
$ 17.49
$ 17.49 - $ 17.49
$ 17.49
$ 13.99
$ 13.99 - $ 13.99
$ 13.99

Foster BL3653, 1/4" Industrial Coupler x 5/16" Hose ID, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3653 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 17.49
$ 17.49 - $ 17.49
$ 17.49
$ 13.99
$ 13.99 - $ 13.99
$ 13.99
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 %
$ 67.39
$ 67.39 - $ 67.39
$ 67.39
$ 53.89
$ 53.89 - $ 53.89
$ 53.89

Foster 3603S/S, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, 303 Stainless

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3603S/S is a 303 Stainless 1/4" industrial coupler from the Foster 3 Serie...

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$ 67.39
$ 67.39 - $ 67.39
$ 67.39
$ 53.89
$ 53.89 - $ 53.89
$ 53.89
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 %
$ 17.09
$ 17.09 - $ 17.09
$ 17.09
$ 13.69
$ 13.69 - $ 13.69
$ 13.69

Foster 3653, 1/4" Industrial Coupler x 5/16" Hose ID, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3653 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 17.09
$ 17.09 - $ 17.09
$ 17.09
$ 13.69
$ 13.69 - $ 13.69
$ 13.69
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 %
$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.19
$ 14.19 - $ 14.19
$ 14.19

Foster 3603W, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3603W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 17.69
$ 17.69 - $ 17.69
$ 17.69
$ 14.19
$ 14.19 - $ 14.19
$ 14.19
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 %
$ 18.19
$ 18.19 - $ 18.19
$ 18.19
$ 14.59
$ 14.59 - $ 14.59
$ 14.59

Foster 3603S, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Steam/EPDM, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3603S is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 18.19
$ 18.19 - $ 18.19
$ 18.19
$ 14.59
$ 14.59 - $ 14.59
$ 14.59
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 %
$ 16.29
$ 16.29 - $ 16.29
$ 16.29
$ 12.99
$ 12.99 - $ 12.99
$ 12.99

Foster BL3603, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL3603 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 16.29
$ 16.29 - $ 16.29
$ 16.29
$ 12.99
$ 12.99 - $ 12.99
$ 12.99
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 %
$ 14.39
$ 14.39 - $ 14.39
$ 14.39
$ 11.49
$ 11.49 - $ 11.49
$ 11.49

Foster 3603, 1/4" Industrial Coupler x 1/4" Hose ID, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3603 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 14.39
$ 14.39 - $ 14.39
$ 14.39
$ 11.49
$ 11.49 - $ 11.49
$ 11.49
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 %
$ 20.19
$ 20.19 - $ 20.19
$ 20.19
$ 16.09
$ 16.09 - $ 16.09
$ 16.09

Foster 1713W, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 1713W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 20.19
$ 20.19 - $ 20.19
$ 20.19
$ 16.09
$ 16.09 - $ 16.09
$ 16.09
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 %
$ 18.59
$ 18.59 - $ 18.59
$ 18.59
$ 14.89
$ 14.89 - $ 14.89
$ 14.89

Foster BL1713, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL1713 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 18.59
$ 18.59 - $ 18.59
$ 18.59
$ 14.89
$ 14.89 - $ 14.89
$ 14.89
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 %
$ 16.19
$ 16.19 - $ 16.19
$ 16.19
$ 12.89
$ 12.89 - $ 12.89
$ 12.89

Foster 1713, 1/4" Industrial Coupler x 3/8" Push-On Hose Stem, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 1713 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 16.19
$ 16.19 - $ 16.19
$ 16.19
$ 12.89
$ 12.89 - $ 12.89
$ 12.89
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 %
$ 20.29
$ 20.29 - $ 20.29
$ 20.29
$ 16.29
$ 16.29 - $ 16.29
$ 16.29

Foster 1513W, 1/4" Industrial Coupler x 1/4" Push-On Hose Stem, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 1513W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 20.29
$ 20.29 - $ 20.29
$ 20.29
$ 16.29
$ 16.29 - $ 16.29
$ 16.29
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 %
$ 18.19
$ 18.19 - $ 18.19
$ 18.19
$ 14.59
$ 14.59 - $ 14.59
$ 14.59

Foster BL1513, 1/4" Industrial Coupler x 1/4" Push-On Hose Stem, 3 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster BL1513 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series —...

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$ 18.19
$ 18.19 - $ 18.19
$ 18.19
$ 14.59
$ 14.59 - $ 14.59
$ 14.59
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 %
$ 15.99
$ 15.99 - $ 15.99
$ 15.99
$ 12.79
$ 12.79 - $ 12.79
$ 12.79

Foster 1513, 1/4" Industrial Coupler x 1/4" Push-On Hose Stem, 3 Series, Brass/Steel

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 1513 is a Brass/Steel 1/4" industrial coupler from the Foster 3 Series — t...

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$ 15.99
$ 15.99 - $ 15.99
$ 15.99
$ 12.79
$ 12.79 - $ 12.79
$ 12.79
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 %
$ 18.69
$ 18.69 - $ 18.69
$ 18.69
$ 14.99
$ 14.99 - $ 14.99
$ 14.99

Foster 3303W, 1/4" Industrial Coupler x 3/8" Male NPT, 3 Series, Water, Brass/SS

Reliable, leak-free 1/4" connections for air and fluid lines. The Foster 3303W is a Brass/SS 1/4" industrial coupler from the Foster 3 Series — the...

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$ 18.69
$ 18.69 - $ 18.69
$ 18.69
$ 14.99
$ 14.99 - $ 14.99
$ 14.99
Save 20% Save %

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