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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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$ 299.00
$ 299.00 - $ 299.00
$ 299.00
$ 240.00
$ 240.00 - $ 240.00
$ 240.00

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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$ 299.00
$ 299.00 - $ 299.00
$ 299.00
$ 240.00
$ 240.00 - $ 240.00
$ 240.00
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$ 1,317.00
$ 1,317.00 - $ 1,317.00
$ 1,317.00
$ 1,053.00
$ 1,053.00 - $ 1,053.00
$ 1,053.00

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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$ 1,317.00
$ 1,317.00 - $ 1,317.00
$ 1,317.00
$ 1,053.00
$ 1,053.00 - $ 1,053.00
$ 1,053.00
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$ 361.00
$ 361.00 - $ 361.00
$ 361.00
$ 288.00
$ 288.00 - $ 288.00
$ 288.00

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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$ 361.00
$ 361.00 - $ 361.00
$ 361.00
$ 288.00
$ 288.00 - $ 288.00
$ 288.00
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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

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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$ 1,340.00
$ 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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$ 493.00
$ 493.00 - $ 493.00
$ 493.00
$ 395.00
$ 395.00 - $ 395.00
$ 395.00

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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$ 493.00
$ 493.00 - $ 493.00
$ 493.00
$ 395.00
$ 395.00 - $ 395.00
$ 395.00
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$ 1,306.00
$ 1,306.00 - $ 1,306.00
$ 1,306.00
$ 1,045.00
$ 1,045.00 - $ 1,045.00
$ 1,045.00

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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$ 1,306.00
$ 1,306.00 - $ 1,306.00
$ 1,306.00
$ 1,045.00
$ 1,045.00 - $ 1,045.00
$ 1,045.00
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$ 434.00
$ 434.00 - $ 434.00
$ 434.00
$ 347.00
$ 347.00 - $ 347.00
$ 347.00

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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$ 434.00
$ 434.00 - $ 434.00
$ 434.00
$ 347.00
$ 347.00 - $ 347.00
$ 347.00
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$ 1,352.00
$ 1,352.00 - $ 1,352.00
$ 1,352.00
$ 1,081.00
$ 1,081.00 - $ 1,081.00
$ 1,081.00

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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$ 1,352.00
$ 1,352.00 - $ 1,352.00
$ 1,352.00
$ 1,081.00
$ 1,081.00 - $ 1,081.00
$ 1,081.00
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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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$ 1,340.00
$ 1,340.00 - $ 1,340.00
$ 1,340.00
$ 1,072.00
$ 1,072.00 - $ 1,072.00
$ 1,072.00

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
$ 1,340.00
$ 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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$ 1,421.00
$ 1,421.00 - $ 1,421.00
$ 1,421.00
$ 1,137.00
$ 1,137.00 - $ 1,137.00
$ 1,137.00

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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$ 1,421.00
$ 1,421.00 - $ 1,421.00
$ 1,421.00
$ 1,137.00
$ 1,137.00 - $ 1,137.00
$ 1,137.00
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$ 631.00
$ 631.00 - $ 631.00
$ 631.00
$ 504.00
$ 504.00 - $ 504.00
$ 504.00

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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$ 631.00
$ 631.00 - $ 631.00
$ 631.00
$ 504.00
$ 504.00 - $ 504.00
$ 504.00
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$ 508.00
$ 508.00 - $ 508.00
$ 508.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00

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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$ 508.00
$ 508.00 - $ 508.00
$ 508.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00
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$ 1,265.00
$ 1,265.00 - $ 1,265.00
$ 1,265.00
$ 1,012.00
$ 1,012.00 - $ 1,012.00
$ 1,012.00

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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$ 1,265.00
$ 1,265.00 - $ 1,265.00
$ 1,265.00
$ 1,012.00
$ 1,012.00 - $ 1,012.00
$ 1,012.00
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$ 1,356.00
$ 1,356.00 - $ 1,356.00
$ 1,356.00
$ 1,085.00
$ 1,085.00 - $ 1,085.00
$ 1,085.00

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...

View full details
$ 1,356.00
$ 1,356.00 - $ 1,356.00
$ 1,356.00
$ 1,085.00
$ 1,085.00 - $ 1,085.00
$ 1,085.00
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$ 1,480.00
$ 1,480.00 - $ 1,480.00
$ 1,480.00
$ 1,185.00
$ 1,185.00 - $ 1,185.00
$ 1,185.00

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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$ 1,480.00
$ 1,480.00 - $ 1,480.00
$ 1,480.00
$ 1,185.00
$ 1,185.00 - $ 1,185.00
$ 1,185.00
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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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$ 570.00
$ 570.00 - $ 570.00
$ 570.00
$ 457.00
$ 457.00 - $ 457.00
$ 457.00

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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$ 570.00
$ 570.00 - $ 570.00
$ 570.00
$ 457.00
$ 457.00 - $ 457.00
$ 457.00
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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 %
$ 508.00
$ 508.00 - $ 508.00
$ 508.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00

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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$ 508.00
$ 508.00 - $ 508.00
$ 508.00
$ 407.00
$ 407.00 - $ 407.00
$ 407.00
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 %
$ 384.00
$ 384.00 - $ 384.00
$ 384.00
$ 307.00
$ 307.00 - $ 307.00
$ 307.00

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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$ 384.00
$ 384.00 - $ 384.00
$ 384.00
$ 307.00
$ 307.00 - $ 307.00
$ 307.00
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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 %
$ 434.00
$ 434.00 - $ 434.00
$ 434.00
$ 347.00
$ 347.00 - $ 347.00
$ 347.00

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
$ 434.00
$ 434.00 - $ 434.00
$ 434.00
$ 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
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$ 493.00
$ 493.00 - $ 493.00
$ 493.00
$ 395.00
$ 395.00 - $ 395.00
$ 395.00

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
$ 493.00
$ 493.00 - $ 493.00
$ 493.00
$ 395.00
$ 395.00 - $ 395.00
$ 395.00
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 %
$ 299.00
$ 299.00 - $ 299.00
$ 299.00
$ 240.00
$ 240.00 - $ 240.00
$ 240.00

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
$ 299.00
$ 299.00 - $ 299.00
$ 299.00
$ 240.00
$ 240.00 - $ 240.00
$ 240.00
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 %
$ 631.00
$ 631.00 - $ 631.00
$ 631.00
$ 504.00
$ 504.00 - $ 504.00
$ 504.00

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
$ 631.00
$ 631.00 - $ 631.00
$ 631.00
$ 504.00
$ 504.00 - $ 504.00
$ 504.00
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 %
$ 635.00
$ 635.00 - $ 635.00
$ 635.00
$ 508.00
$ 508.00 - $ 508.00
$ 508.00

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
$ 635.00
$ 635.00 - $ 635.00
$ 635.00
$ 508.00
$ 508.00 - $ 508.00
$ 508.00
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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$ 315.00
$ 315.00 - $ 315.00
$ 315.00
$ 251.00
$ 251.00 - $ 251.00
$ 251.00

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
$ 315.00
$ 315.00 - $ 315.00
$ 315.00
$ 251.00
$ 251.00 - $ 251.00
$ 251.00
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