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Foster 6 Series Couplers

The Foster 6 Series is the 3/4" body industrial interchange, a high-flow air coupler size for heavy shop and industrial systems. This collection includes 6 Series automatic couplers and plugs in brass and steel with NPT and hose barb terminations. Filter by thread, material, and coupler or plug to match your line.

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$ 276.00
$ 276.00 - $ 276.00
$ 276.00
$ 222.00
$ 222.00 - $ 222.00
$ 222.00

Foster 66-6, 6 Series, Industrial Plug, 3/4" Male NPT, 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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$ 276.00
$ 276.00 - $ 276.00
$ 276.00
$ 222.00
$ 222.00 - $ 222.00
$ 222.00
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$ 1,216.00
$ 1,216.00 - $ 1,216.00
$ 1,216.00
$ 972.00
$ 972.00 - $ 972.00
$ 972.00

Foster FM6406, 6 Series, Industrial Coupler, Automatic, 3/4" Female NPT, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6406 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 1,216.00
$ 1,216.00 - $ 1,216.00
$ 1,216.00
$ 972.00
$ 972.00 - $ 972.00
$ 972.00
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$ 333.00
$ 333.00 - $ 333.00
$ 333.00
$ 266.00
$ 266.00 - $ 266.00
$ 266.00

Foster 65-6, 6 Series, Industrial Plug, 1/2" Female NPT, 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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$ 333.00
$ 333.00 - $ 333.00
$ 333.00
$ 266.00
$ 266.00 - $ 266.00
$ 266.00
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$ 1,237.00
$ 1,237.00 - $ 1,237.00
$ 1,237.00
$ 989.00
$ 989.00 - $ 989.00
$ 989.00

FM6706, 6 Series, Industrial Coupler, Automatic, 1" Male NPT, 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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$ 1,237.00
$ 1,237.00 - $ 1,237.00
$ 1,237.00
$ 989.00
$ 989.00 - $ 989.00
$ 989.00
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$ 455.00
$ 455.00 - $ 455.00
$ 455.00
$ 365.00
$ 365.00 - $ 365.00
$ 365.00

Foster 68-6, 6 Series, Industrial Plug, 1" Male NPT, 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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$ 455.00
$ 455.00 - $ 455.00
$ 455.00
$ 365.00
$ 365.00 - $ 365.00
$ 365.00
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$ 1,205.00
$ 1,205.00 - $ 1,205.00
$ 1,205.00
$ 965.00
$ 965.00 - $ 965.00
$ 965.00

Foster FM6606, 6 Series, Industrial Coupler, Automatic, 1" Female NPT, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6606 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 1,205.00
$ 1,205.00 - $ 1,205.00
$ 1,205.00
$ 965.00
$ 965.00 - $ 965.00
$ 965.00
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$ 400.00
$ 400.00 - $ 400.00
$ 400.00
$ 321.00
$ 321.00 - $ 321.00
$ 321.00

Foster 70-6, 6 Series, Industrial Plug, 1/2" Hose Barb, 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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$ 400.00
$ 400.00 - $ 400.00
$ 400.00
$ 321.00
$ 321.00 - $ 321.00
$ 321.00
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$ 1,248.00
$ 1,248.00 - $ 1,248.00
$ 1,248.00
$ 998.00
$ 998.00 - $ 998.00
$ 998.00

Foster FM6806, 6 Series, Industrial Coupler, Automatic, 1/2" Hose Barb, 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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$ 1,248.00
$ 1,248.00 - $ 1,248.00
$ 1,248.00
$ 998.00
$ 998.00 - $ 998.00
$ 998.00
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$ 582.00
$ 582.00 - $ 582.00
$ 582.00
$ 466.00
$ 466.00 - $ 466.00
$ 466.00

Foster 64-6, 6 Series, Industrial Plug, 1/2" Male NPT, 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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$ 582.00
$ 582.00 - $ 582.00
$ 582.00
$ 466.00
$ 466.00 - $ 466.00
$ 466.00
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$ 469.00
$ 469.00 - $ 469.00
$ 469.00
$ 375.00
$ 375.00 - $ 375.00
$ 375.00

Foster 72-6, 6 Series, Industrial Plug, 1" Hose Barb, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 72-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 469.00
$ 469.00 - $ 469.00
$ 469.00
$ 375.00
$ 375.00 - $ 375.00
$ 375.00
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$ 1,168.00
$ 1,168.00 - $ 1,168.00
$ 1,168.00
$ 935.00
$ 935.00 - $ 935.00
$ 935.00

Foster FM6206, 6 Series, Industrial Coupler, Automatic, 1/2" Female NPT, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6206 is a Brass 3/4" industrial coupler from the Foster 6 Seri...

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$ 1,168.00
$ 1,168.00 - $ 1,168.00
$ 1,168.00
$ 935.00
$ 935.00 - $ 935.00
$ 935.00
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$ 1,251.00
$ 1,251.00 - $ 1,251.00
$ 1,251.00
$ 1,002.00
$ 1,002.00 - $ 1,002.00
$ 1,002.00

Foster FM6306, 6 Series, Industrial Coupler, Automatic, 1/2" Male NPT, 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...

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$ 1,251.00
$ 1,251.00 - $ 1,251.00
$ 1,251.00
$ 1,002.00
$ 1,002.00 - $ 1,002.00
$ 1,002.00
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$ 1,366.00
$ 1,366.00 - $ 1,366.00
$ 1,366.00
$ 1,094.00
$ 1,094.00 - $ 1,094.00
$ 1,094.00

Foster 7006, 6 Series, Industrial Coupler, Automatic, 1" Hose Barb, 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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$ 1,366.00
$ 1,366.00 - $ 1,366.00
$ 1,366.00
$ 1,094.00
$ 1,094.00 - $ 1,094.00
$ 1,094.00
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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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$ 526.00
$ 526.00 - $ 526.00
$ 526.00
$ 421.00
$ 421.00 - $ 421.00
$ 421.00

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

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

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$ 526.00
$ 526.00 - $ 526.00
$ 526.00
$ 421.00
$ 421.00 - $ 421.00
$ 421.00
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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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$ 469.00
$ 469.00 - $ 469.00
$ 469.00
$ 375.00
$ 375.00 - $ 375.00
$ 375.00

Foster 72-6, 3/4" Industrial Plug x 1" Hose ID, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 72-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 469.00
$ 469.00 - $ 469.00
$ 469.00
$ 375.00
$ 375.00 - $ 375.00
$ 375.00
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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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$ 354.00
$ 354.00 - $ 354.00
$ 354.00
$ 283.00
$ 283.00 - $ 283.00
$ 283.00

Foster 71-6, 3/4" Industrial Plug x 3/4" Hose ID, 6 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 71-6 is a Steel 3/4" industrial plug from the Foster 6 Series — ...

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$ 354.00
$ 354.00 - $ 354.00
$ 354.00
$ 283.00
$ 283.00 - $ 283.00
$ 283.00
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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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$ 400.00
$ 400.00 - $ 400.00
$ 400.00
$ 321.00
$ 321.00 - $ 321.00
$ 321.00

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 — ...

View full details
$ 400.00
$ 400.00 - $ 400.00
$ 400.00
$ 321.00
$ 321.00 - $ 321.00
$ 321.00
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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 %
$ 455.00
$ 455.00 - $ 455.00
$ 455.00
$ 365.00
$ 365.00 - $ 365.00
$ 365.00

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 — ...

View full details
$ 455.00
$ 455.00 - $ 455.00
$ 455.00
$ 365.00
$ 365.00 - $ 365.00
$ 365.00
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 %
$ 276.00
$ 276.00 - $ 276.00
$ 276.00
$ 222.00
$ 222.00 - $ 222.00
$ 222.00

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 — ...

View full details
$ 276.00
$ 276.00 - $ 276.00
$ 276.00
$ 222.00
$ 222.00 - $ 222.00
$ 222.00
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 %
$ 582.00
$ 582.00 - $ 582.00
$ 582.00
$ 466.00
$ 466.00 - $ 466.00
$ 466.00

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 — ...

View full details
$ 582.00
$ 582.00 - $ 582.00
$ 582.00
$ 466.00
$ 466.00 - $ 466.00
$ 466.00
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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$ 586.00
$ 586.00 - $ 586.00
$ 586.00
$ 469.00
$ 469.00 - $ 469.00
$ 469.00

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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$ 586.00
$ 586.00 - $ 586.00
$ 586.00
$ 469.00
$ 469.00 - $ 469.00
$ 469.00
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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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$ 291.00
$ 291.00 - $ 291.00
$ 291.00
$ 232.00
$ 232.00 - $ 232.00
$ 232.00

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 — ...

View full details
$ 291.00
$ 291.00 - $ 291.00
$ 291.00
$ 232.00
$ 232.00 - $ 232.00
$ 232.00
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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 %
$ 333.00
$ 333.00 - $ 333.00
$ 333.00
$ 266.00
$ 266.00 - $ 266.00
$ 266.00

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 — ...

View full details
$ 333.00
$ 333.00 - $ 333.00
$ 333.00
$ 266.00
$ 266.00 - $ 266.00
$ 266.00
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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$ 1,607.00
$ 1,607.00 - $ 1,607.00
$ 1,607.00
$ 1,287.00
$ 1,287.00 - $ 1,287.00
$ 1,287.00

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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$ 1,607.00
$ 1,607.00 - $ 1,607.00
$ 1,607.00
$ 1,287.00
$ 1,287.00 - $ 1,287.00
$ 1,287.00
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