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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 %
$ 22.59
$ 22.59 - $ 22.59
$ 22.59
$ 18.09
$ 18.09 - $ 18.09
$ 18.09

Foster 70-6, 3/4" Industrial Plug x 1/2" Hose ID, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 70-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 22.59
$ 22.59 - $ 22.59
$ 22.59
$ 18.09
$ 18.09 - $ 18.09
$ 18.09
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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 %
$ 25.69
$ 25.69 - $ 25.69
$ 25.69
$ 20.59
$ 20.59 - $ 20.59
$ 20.59

Foster 68-6, 3/4" Industrial Plug x 1" Male NPT, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 68-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 25.69
$ 25.69 - $ 25.69
$ 25.69
$ 20.59
$ 20.59 - $ 20.59
$ 20.59
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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 %
$ 15.59
$ 15.59 - $ 15.59
$ 15.59
$ 12.49
$ 12.49 - $ 12.49
$ 12.49

Foster 66-6, 3/4" Industrial Plug x 3/4" Male NPT, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 66-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 15.59
$ 15.59 - $ 15.59
$ 15.59
$ 12.49
$ 12.49 - $ 12.49
$ 12.49
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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 %
$ 32.89
$ 32.89 - $ 32.89
$ 32.89
$ 26.29
$ 26.29 - $ 26.29
$ 26.29

Foster 64-6, 3/4" Industrial Plug x 1/2" Male NPT, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 64-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 32.89
$ 32.89 - $ 32.89
$ 32.89
$ 26.29
$ 26.29 - $ 26.29
$ 26.29
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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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$ 33.09
$ 33.09 - $ 33.09
$ 33.09
$ 26.49
$ 26.49 - $ 26.49
$ 26.49

Foster 69-6, 3/4" Industrial Plug x 1" Female NPT, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 69-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 33.09
$ 33.09 - $ 33.09
$ 33.09
$ 26.49
$ 26.49 - $ 26.49
$ 26.49
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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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$ 16.39
$ 16.39 - $ 16.39
$ 16.39
$ 13.09
$ 13.09 - $ 13.09
$ 13.09

Foster 67-6, 3/4" Industrial Plug x 3/4" Female NPT, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 67-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 16.39
$ 16.39 - $ 16.39
$ 16.39
$ 13.09
$ 13.09 - $ 13.09
$ 13.09
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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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$ 18.79
$ 18.79 - $ 18.79
$ 18.79
$ 14.99
$ 14.99 - $ 14.99
$ 14.99

Foster 65-6, 3/4" Industrial Plug x 1/2" Female NPT, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 65-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 18.79
$ 18.79 - $ 18.79
$ 18.79
$ 14.99
$ 14.99 - $ 14.99
$ 14.99
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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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$ 90.79
$ 90.79 - $ 90.79
$ 90.79
$ 72.69
$ 72.69 - $ 72.69
$ 72.69

Foster SL7006, 3/4" Industrial Coupler x 1" Hose ID, 6 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL7006 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 90.79
$ 90.79 - $ 90.79
$ 90.79
$ 72.69
$ 72.69 - $ 72.69
$ 72.69
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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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$ 77.19
$ 77.19 - $ 77.19
$ 77.19
$ 61.79
$ 61.79 - $ 61.79
$ 61.79

Foster FM7006, 3/4" Industrial Coupler x 1" Hose ID, 6 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM7006 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 77.19
$ 77.19 - $ 77.19
$ 77.19
$ 61.79
$ 61.79 - $ 61.79
$ 61.79
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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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$ 80.69
$ 80.69 - $ 80.69
$ 80.69
$ 64.49
$ 64.49 - $ 64.49
$ 64.49

Foster FM6906W, 3/4" Industrial Coupler x 3/4" Hose ID, 6 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6906W is a Brass/SS 3/4" industrial coupler from the Foster 6 ...

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$ 80.69
$ 80.69 - $ 80.69
$ 80.69
$ 64.49
$ 64.49 - $ 64.49
$ 64.49
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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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$ 85.09
$ 85.09 - $ 85.09
$ 85.09
$ 68.09
$ 68.09 - $ 68.09
$ 68.09

Foster SL6906, 3/4" Industrial Coupler x 3/4" Hose ID, 6 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL6906 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 85.09
$ 85.09 - $ 85.09
$ 85.09
$ 68.09
$ 68.09 - $ 68.09
$ 68.09
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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 %
$ 70.49
$ 70.49 - $ 70.49
$ 70.49
$ 56.39
$ 56.39 - $ 56.39
$ 56.39

Foster FM6806, 3/4" Industrial Coupler x 1/2" Hose ID, 6 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6806 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 70.49
$ 70.49 - $ 70.49
$ 70.49
$ 56.39
$ 56.39 - $ 56.39
$ 56.39
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 %
$ 74.29
$ 74.29 - $ 74.29
$ 74.29
$ 59.49
$ 59.49 - $ 59.49
$ 59.49

Foster FM6906, 3/4" Industrial Coupler x 3/4" Hose ID, 6 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6906 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 74.29
$ 74.29 - $ 74.29
$ 74.29
$ 59.49
$ 59.49 - $ 59.49
$ 59.49
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 %
$ 76.19
$ 76.19 - $ 76.19
$ 76.19
$ 60.99
$ 60.99 - $ 60.99
$ 60.99

Foster FM6806W, 3/4" Industrial Coupler x 1/2" Hose ID, 6 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6806W is a Brass/SS 3/4" industrial coupler from the Foster 6 ...

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$ 76.19
$ 76.19 - $ 76.19
$ 76.19
$ 60.99
$ 60.99 - $ 60.99
$ 60.99
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 %
$ 80.29
$ 80.29 - $ 80.29
$ 80.29
$ 64.19
$ 64.19 - $ 64.19
$ 64.19

Foster SL6706, 3/4" Industrial Coupler x 1" Male NPT, 6 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL6706 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 80.29
$ 80.29 - $ 80.29
$ 80.29
$ 64.19
$ 64.19 - $ 64.19
$ 64.19
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 %
$ 69.89
$ 69.89 - $ 69.89
$ 69.89
$ 55.89
$ 55.89 - $ 55.89
$ 55.89

Foster FM6706, 3/4" Industrial Coupler x 1" Male NPT, 6 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6706 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 69.89
$ 69.89 - $ 69.89
$ 69.89
$ 55.89
$ 55.89 - $ 55.89
$ 55.89
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 %
$ 74.59
$ 74.59 - $ 74.59
$ 74.59
$ 59.59
$ 59.59 - $ 59.59
$ 59.59

Foster FM6506W, 3/4" Industrial Coupler x 3/4" Male NPT, 6 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6506W is a Brass/SS 3/4" industrial coupler from the Foster 6 ...

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$ 74.59
$ 74.59 - $ 74.59
$ 74.59
$ 59.59
$ 59.59 - $ 59.59
$ 59.59
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 %
$ 79.39
$ 79.39 - $ 79.39
$ 79.39
$ 63.59
$ 63.59 - $ 63.59
$ 63.59

Foster FM6506S, 3/4" Industrial Coupler x 3/4" Male NPT, 6 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6506S is a Brass/SS 3/4" industrial coupler from the Foster 6 ...

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$ 79.39
$ 79.39 - $ 79.39
$ 79.39
$ 63.59
$ 63.59 - $ 63.59
$ 63.59
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 %
$ 78.99
$ 78.99 - $ 78.99
$ 78.99
$ 63.19
$ 63.19 - $ 63.19
$ 63.19

Foster SL6506, 3/4" Industrial Coupler x 3/4" Male NPT, 6 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL6506 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 78.99
$ 78.99 - $ 78.99
$ 78.99
$ 63.19
$ 63.19 - $ 63.19
$ 63.19
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 %
$ 68.19
$ 68.19 - $ 68.19
$ 68.19
$ 54.59
$ 54.59 - $ 54.59
$ 54.59

Foster FM6506, 3/4" Industrial Coupler x 3/4" Male NPT, 6 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6506 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 68.19
$ 68.19 - $ 68.19
$ 68.19
$ 54.59
$ 54.59 - $ 54.59
$ 54.59
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 %
$ 73.69
$ 73.69 - $ 73.69
$ 73.69
$ 58.99
$ 58.99 - $ 58.99
$ 58.99

Foster FM6306W, 3/4" Industrial Coupler x 1/2" Male NPT, 6 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6306W is a Brass/SS 3/4" industrial coupler from the Foster 6 ...

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$ 73.69
$ 73.69 - $ 73.69
$ 73.69
$ 58.99
$ 58.99 - $ 58.99
$ 58.99
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 %
$ 81.49
$ 81.49 - $ 81.49
$ 81.49
$ 65.19
$ 65.19 - $ 65.19
$ 65.19

Foster FM6306S, 3/4" Industrial Coupler x 1/2" Male NPT, 6 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6306S is a Brass/SS 3/4" industrial coupler from the Foster 6 ...

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$ 81.49
$ 81.49 - $ 81.49
$ 81.49
$ 65.19
$ 65.19 - $ 65.19
$ 65.19
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 %
$ 81.29
$ 81.29 - $ 81.29
$ 81.29
$ 64.99
$ 64.99 - $ 64.99
$ 64.99

Foster SL6306, 3/4" Industrial Coupler x 1/2" Male NPT, 6 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL6306 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

View full details
$ 81.29
$ 81.29 - $ 81.29
$ 81.29
$ 64.99
$ 64.99 - $ 64.99
$ 64.99
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 %
$ 70.69
$ 70.69 - $ 70.69
$ 70.69
$ 56.59
$ 56.59 - $ 56.59
$ 56.59

Foster FM6306, 3/4" Industrial Coupler x 1/2" Male NPT, 6 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6306 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

View full details
$ 70.69
$ 70.69 - $ 70.69
$ 70.69
$ 56.59
$ 56.59 - $ 56.59
$ 56.59
Save 20% Save %

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