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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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$ 297.00
$ 297.00 - $ 297.00
$ 297.00
$ 238.00
$ 238.00 - $ 238.00
$ 238.00

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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$ 297.00
$ 297.00 - $ 297.00
$ 297.00
$ 238.00
$ 238.00 - $ 238.00
$ 238.00
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$ 1,306.00
$ 1,306.00 - $ 1,306.00
$ 1,306.00
$ 1,044.00
$ 1,044.00 - $ 1,044.00
$ 1,044.00

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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$ 1,306.00
$ 1,306.00 - $ 1,306.00
$ 1,306.00
$ 1,044.00
$ 1,044.00 - $ 1,044.00
$ 1,044.00
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$ 358.00
$ 358.00 - $ 358.00
$ 358.00
$ 285.00
$ 285.00 - $ 285.00
$ 285.00

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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$ 358.00
$ 358.00 - $ 358.00
$ 358.00
$ 285.00
$ 285.00 - $ 285.00
$ 285.00
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$ 1,329.00
$ 1,329.00 - $ 1,329.00
$ 1,329.00
$ 1,063.00
$ 1,063.00 - $ 1,063.00
$ 1,063.00

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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$ 1,329.00
$ 1,329.00 - $ 1,329.00
$ 1,329.00
$ 1,063.00
$ 1,063.00 - $ 1,063.00
$ 1,063.00
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$ 489.00
$ 489.00 - $ 489.00
$ 489.00
$ 392.00
$ 392.00 - $ 392.00
$ 392.00

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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$ 489.00
$ 489.00 - $ 489.00
$ 489.00
$ 392.00
$ 392.00 - $ 392.00
$ 392.00
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$ 1,295.00
$ 1,295.00 - $ 1,295.00
$ 1,295.00
$ 1,036.00
$ 1,036.00 - $ 1,036.00
$ 1,036.00

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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$ 1,295.00
$ 1,295.00 - $ 1,295.00
$ 1,295.00
$ 1,036.00
$ 1,036.00 - $ 1,036.00
$ 1,036.00
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$ 430.00
$ 430.00 - $ 430.00
$ 430.00
$ 344.00
$ 344.00 - $ 344.00
$ 344.00

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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$ 430.00
$ 430.00 - $ 430.00
$ 430.00
$ 344.00
$ 344.00 - $ 344.00
$ 344.00
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$ 1,340.00
$ 1,340.00 - $ 1,340.00
$ 1,340.00
$ 1,072.00
$ 1,072.00 - $ 1,072.00
$ 1,072.00

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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$ 1,340.00
$ 1,340.00 - $ 1,340.00
$ 1,340.00
$ 1,072.00
$ 1,072.00 - $ 1,072.00
$ 1,072.00
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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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$ 1,329.00
$ 1,329.00 - $ 1,329.00
$ 1,329.00
$ 1,063.00
$ 1,063.00 - $ 1,063.00
$ 1,063.00

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...

View full details
$ 1,329.00
$ 1,329.00 - $ 1,329.00
$ 1,329.00
$ 1,063.00
$ 1,063.00 - $ 1,063.00
$ 1,063.00
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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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$ 1,409.00
$ 1,409.00 - $ 1,409.00
$ 1,409.00
$ 1,127.00
$ 1,127.00 - $ 1,127.00
$ 1,127.00

Foster FM6406W, 3/4" Industrial Coupler x 3/4" Female NPT, 6 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM6406W is a Brass/SS 3/4" industrial coupler from the Foster 6 ...

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$ 1,409.00
$ 1,409.00 - $ 1,409.00
$ 1,409.00
$ 1,127.00
$ 1,127.00 - $ 1,127.00
$ 1,127.00
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$ 626.00
$ 626.00 - $ 626.00
$ 626.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00

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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$ 626.00
$ 626.00 - $ 626.00
$ 626.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00
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$ 504.00
$ 504.00 - $ 504.00
$ 504.00
$ 403.00
$ 403.00 - $ 403.00
$ 403.00

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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$ 504.00
$ 504.00 - $ 504.00
$ 504.00
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
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$ 1,255.00
$ 1,255.00 - $ 1,255.00
$ 1,255.00
$ 1,004.00
$ 1,004.00 - $ 1,004.00
$ 1,004.00

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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$ 1,255.00
$ 1,255.00 - $ 1,255.00
$ 1,255.00
$ 1,004.00
$ 1,004.00 - $ 1,004.00
$ 1,004.00
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$ 1,344.00
$ 1,344.00 - $ 1,344.00
$ 1,344.00
$ 1,076.00
$ 1,076.00 - $ 1,076.00
$ 1,076.00

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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$ 1,344.00
$ 1,344.00 - $ 1,344.00
$ 1,344.00
$ 1,076.00
$ 1,076.00 - $ 1,076.00
$ 1,076.00
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$ 1,468.00
$ 1,468.00 - $ 1,468.00
$ 1,468.00
$ 1,175.00
$ 1,175.00 - $ 1,175.00
$ 1,175.00

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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$ 1,468.00
$ 1,468.00 - $ 1,468.00
$ 1,468.00
$ 1,175.00
$ 1,175.00 - $ 1,175.00
$ 1,175.00
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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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$ 565.00
$ 565.00 - $ 565.00
$ 565.00
$ 453.00
$ 453.00 - $ 453.00
$ 453.00

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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$ 565.00
$ 565.00 - $ 565.00
$ 565.00
$ 453.00
$ 453.00 - $ 453.00
$ 453.00
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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 %
$ 504.00
$ 504.00 - $ 504.00
$ 504.00
$ 403.00
$ 403.00 - $ 403.00
$ 403.00

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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$ 504.00
$ 504.00 - $ 504.00
$ 504.00
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
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 %
$ 380.00
$ 380.00 - $ 380.00
$ 380.00
$ 304.00
$ 304.00 - $ 304.00
$ 304.00

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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$ 380.00
$ 380.00 - $ 380.00
$ 380.00
$ 304.00
$ 304.00 - $ 304.00
$ 304.00
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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 %
$ 430.00
$ 430.00 - $ 430.00
$ 430.00
$ 344.00
$ 344.00 - $ 344.00
$ 344.00

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
$ 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 %
$ 489.00
$ 489.00 - $ 489.00
$ 489.00
$ 392.00
$ 392.00 - $ 392.00
$ 392.00

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
$ 489.00
$ 489.00 - $ 489.00
$ 489.00
$ 392.00
$ 392.00 - $ 392.00
$ 392.00
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 %
$ 297.00
$ 297.00 - $ 297.00
$ 297.00
$ 238.00
$ 238.00 - $ 238.00
$ 238.00

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
$ 297.00
$ 297.00 - $ 297.00
$ 297.00
$ 238.00
$ 238.00 - $ 238.00
$ 238.00
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 %
$ 626.00
$ 626.00 - $ 626.00
$ 626.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00

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
$ 626.00
$ 626.00 - $ 626.00
$ 626.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00
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 %
$ 629.00
$ 629.00 - $ 629.00
$ 629.00
$ 504.00
$ 504.00 - $ 504.00
$ 504.00

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 — ...

View full details
$ 629.00
$ 629.00 - $ 629.00
$ 629.00
$ 504.00
$ 504.00 - $ 504.00
$ 504.00
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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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$ 312.00
$ 312.00 - $ 312.00
$ 312.00
$ 249.00
$ 249.00 - $ 249.00
$ 249.00

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 — ...

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$ 312.00
$ 312.00 - $ 312.00
$ 312.00
$ 249.00
$ 249.00 - $ 249.00
$ 249.00
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