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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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$ 269.00
$ 269.00 - $ 269.00
$ 269.00
$ 216.00
$ 216.00 - $ 216.00
$ 216.00

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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$ 269.00
$ 269.00 - $ 269.00
$ 269.00
$ 216.00
$ 216.00 - $ 216.00
$ 216.00
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$ 1,185.00
$ 1,185.00 - $ 1,185.00
$ 1,185.00
$ 947.00
$ 947.00 - $ 947.00
$ 947.00

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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$ 1,185.00
$ 1,185.00 - $ 1,185.00
$ 1,185.00
$ 947.00
$ 947.00 - $ 947.00
$ 947.00
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$ 324.00
$ 324.00 - $ 324.00
$ 324.00
$ 259.00
$ 259.00 - $ 259.00
$ 259.00

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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$ 324.00
$ 324.00 - $ 324.00
$ 324.00
$ 259.00
$ 259.00 - $ 259.00
$ 259.00
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$ 1,206.00
$ 1,206.00 - $ 1,206.00
$ 1,206.00
$ 964.00
$ 964.00 - $ 964.00
$ 964.00

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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$ 1,206.00
$ 1,206.00 - $ 1,206.00
$ 1,206.00
$ 964.00
$ 964.00 - $ 964.00
$ 964.00
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$ 443.00
$ 443.00 - $ 443.00
$ 443.00
$ 355.00
$ 355.00 - $ 355.00
$ 355.00

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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$ 443.00
$ 443.00 - $ 443.00
$ 443.00
$ 355.00
$ 355.00 - $ 355.00
$ 355.00
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$ 1,174.00
$ 1,174.00 - $ 1,174.00
$ 1,174.00
$ 940.00
$ 940.00 - $ 940.00
$ 940.00

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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$ 1,174.00
$ 1,174.00 - $ 1,174.00
$ 1,174.00
$ 940.00
$ 940.00 - $ 940.00
$ 940.00
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$ 390.00
$ 390.00 - $ 390.00
$ 390.00
$ 312.00
$ 312.00 - $ 312.00
$ 312.00

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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$ 390.00
$ 390.00 - $ 390.00
$ 390.00
$ 312.00
$ 312.00 - $ 312.00
$ 312.00
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$ 1,216.00
$ 1,216.00 - $ 1,216.00
$ 1,216.00
$ 973.00
$ 973.00 - $ 973.00
$ 973.00

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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$ 1,216.00
$ 1,216.00 - $ 1,216.00
$ 1,216.00
$ 973.00
$ 973.00 - $ 973.00
$ 973.00
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$ 568.00
$ 568.00 - $ 568.00
$ 568.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00

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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$ 568.00
$ 568.00 - $ 568.00
$ 568.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00
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$ 457.00
$ 457.00 - $ 457.00
$ 457.00
$ 366.00
$ 366.00 - $ 366.00
$ 366.00

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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$ 457.00
$ 457.00 - $ 457.00
$ 457.00
$ 366.00
$ 366.00 - $ 366.00
$ 366.00
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$ 1,138.00
$ 1,138.00 - $ 1,138.00
$ 1,138.00
$ 911.00
$ 911.00 - $ 911.00
$ 911.00

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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$ 1,138.00
$ 1,138.00 - $ 1,138.00
$ 1,138.00
$ 911.00
$ 911.00 - $ 911.00
$ 911.00
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$ 1,219.00
$ 1,219.00 - $ 1,219.00
$ 1,219.00
$ 976.00
$ 976.00 - $ 976.00
$ 976.00

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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$ 1,219.00
$ 1,219.00 - $ 1,219.00
$ 1,219.00
$ 976.00
$ 976.00 - $ 976.00
$ 976.00
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$ 1,331.00
$ 1,331.00 - $ 1,331.00
$ 1,331.00
$ 1,066.00
$ 1,066.00 - $ 1,066.00
$ 1,066.00

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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$ 1,331.00
$ 1,331.00 - $ 1,331.00
$ 1,331.00
$ 1,066.00
$ 1,066.00 - $ 1,066.00
$ 1,066.00
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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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$ 512.00
$ 512.00 - $ 512.00
$ 512.00
$ 411.00
$ 411.00 - $ 411.00
$ 411.00

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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$ 512.00
$ 512.00 - $ 512.00
$ 512.00
$ 411.00
$ 411.00 - $ 411.00
$ 411.00
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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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$ 457.00
$ 457.00 - $ 457.00
$ 457.00
$ 366.00
$ 366.00 - $ 366.00
$ 366.00

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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$ 457.00
$ 457.00 - $ 457.00
$ 457.00
$ 366.00
$ 366.00 - $ 366.00
$ 366.00
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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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$ 345.00
$ 345.00 - $ 345.00
$ 345.00
$ 276.00
$ 276.00 - $ 276.00
$ 276.00

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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$ 345.00
$ 345.00 - $ 345.00
$ 345.00
$ 276.00
$ 276.00 - $ 276.00
$ 276.00
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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 %
$ 390.00
$ 390.00 - $ 390.00
$ 390.00
$ 312.00
$ 312.00 - $ 312.00
$ 312.00

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
$ 390.00
$ 390.00 - $ 390.00
$ 390.00
$ 312.00
$ 312.00 - $ 312.00
$ 312.00
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 %
$ 443.00
$ 443.00 - $ 443.00
$ 443.00
$ 355.00
$ 355.00 - $ 355.00
$ 355.00

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
$ 443.00
$ 443.00 - $ 443.00
$ 443.00
$ 355.00
$ 355.00 - $ 355.00
$ 355.00
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 %
$ 269.00
$ 269.00 - $ 269.00
$ 269.00
$ 216.00
$ 216.00 - $ 216.00
$ 216.00

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
$ 269.00
$ 269.00 - $ 269.00
$ 269.00
$ 216.00
$ 216.00 - $ 216.00
$ 216.00
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 %
$ 568.00
$ 568.00 - $ 568.00
$ 568.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00

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
$ 568.00
$ 568.00 - $ 568.00
$ 568.00
$ 454.00
$ 454.00 - $ 454.00
$ 454.00
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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$ 571.00
$ 571.00 - $ 571.00
$ 571.00
$ 457.00
$ 457.00 - $ 457.00
$ 457.00

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
$ 571.00
$ 571.00 - $ 571.00
$ 571.00
$ 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
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$ 283.00
$ 283.00 - $ 283.00
$ 283.00
$ 226.00
$ 226.00 - $ 226.00
$ 226.00

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
$ 283.00
$ 283.00 - $ 283.00
$ 283.00
$ 226.00
$ 226.00 - $ 226.00
$ 226.00
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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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$ 324.00
$ 324.00 - $ 324.00
$ 324.00
$ 259.00
$ 259.00 - $ 259.00
$ 259.00

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
$ 324.00
$ 324.00 - $ 324.00
$ 324.00
$ 259.00
$ 259.00 - $ 259.00
$ 259.00
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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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$ 1,566.00
$ 1,566.00 - $ 1,566.00
$ 1,566.00
$ 1,254.00
$ 1,254.00 - $ 1,254.00
$ 1,254.00

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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$ 1,566.00
$ 1,566.00 - $ 1,566.00
$ 1,566.00
$ 1,254.00
$ 1,254.00 - $ 1,254.00
$ 1,254.00
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