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Foster 5 Series Couplers

The Foster 5 Series is the 1/2" body industrial interchange, a high-flow air coupler size for shop and industrial systems. This collection includes 5 Series couplers and plugs in brass, steel, and stainless with NPT, hose barb, push-on, and reusable terminations. Filter by thread, material, and coupler or plug to match your line.

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$ 216.00
$ 216.00 - $ 216.00
$ 216.00
$ 174.00
$ 174.00 - $ 174.00
$ 174.00

Foster 60-5B, 5 Series, Industrial Plug, 1/2" Hose Barb, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 60-5B is a Brass 1/2" industrial plug from the Foster 5 Series —...

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$ 216.00
$ 216.00 - $ 216.00
$ 216.00
$ 174.00
$ 174.00 - $ 174.00
$ 174.00
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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 %
$ 257.00
$ 257.00 - $ 257.00
$ 257.00
$ 206.00
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$ 206.00

Foster 60-5G, 1/2" Industrial Plug x 1/2" Hose ID, 5 Series, Ball Check, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 60-5G is a Steel 1/2" industrial plug from the Foster 5 Series —...

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$ 257.00
$ 257.00 - $ 257.00
$ 257.00
$ 206.00
$ 206.00 - $ 206.00
$ 206.00
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$ 257.00
$ 257.00 - $ 257.00
$ 257.00
$ 206.00
$ 206.00 - $ 206.00
$ 206.00

Foster 60-5G, 5 Series, Industrial Plug, Ball Check, 1/2" Hose Barb, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 60-5G is a Steel 1/2" industrial plug from the Foster 5 Series —...

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$ 257.00
$ 257.00 - $ 257.00
$ 257.00
$ 206.00
$ 206.00 - $ 206.00
$ 206.00
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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 %
$ 264.00
$ 264.00 - $ 264.00
$ 264.00
$ 211.00
$ 211.00 - $ 211.00
$ 211.00

Foster 61-5, 1/2" Industrial Plug x 3/4" Hose ID, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 61-5 is a Steel 1/2" industrial plug from the Foster 5 Series — ...

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$ 264.00
$ 264.00 - $ 264.00
$ 264.00
$ 211.00
$ 211.00 - $ 211.00
$ 211.00
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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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$ 351.00
$ 351.00 - $ 351.00
$ 351.00
$ 280.00
$ 280.00 - $ 280.00
$ 280.00

Foster 61-5B, 1/2" Industrial Plug x 3/4" Hose ID, 5 Series, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 61-5B is a Brass 1/2" industrial plug from the Foster 5 Series —...

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$ 351.00
$ 351.00 - $ 351.00
$ 351.00
$ 280.00
$ 280.00 - $ 280.00
$ 280.00
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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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$ 195.00
$ 195.00 - $ 195.00
$ 195.00
$ 156.00
$ 156.00 - $ 156.00
$ 156.00

Foster 71-5, 1/2" Industrial Plug x 3/8" Push-On Hose Stem, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 71-5 is a Steel 1/2" industrial plug from the Foster 5 Series — ...

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$ 195.00
$ 195.00 - $ 195.00
$ 195.00
$ 156.00
$ 156.00 - $ 156.00
$ 156.00
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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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$ 183.00
$ 183.00 - $ 183.00
$ 183.00
$ 145.00
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$ 145.00

Foster 81-5, 1/2" Industrial Plug x 1/2" Push-On Hose Stem, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 81-5 is a Steel 1/2" industrial plug from the Foster 5 Series — ...

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$ 183.00
$ 183.00 - $ 183.00
$ 183.00
$ 145.00
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$ 145.00
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$ 183.00
$ 183.00 - $ 183.00
$ 183.00
$ 145.00
$ 145.00 - $ 145.00
$ 145.00

Foster 81-5, 5 Series, Industrial Plug, 1/2" Hose Barb, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 81-5 is a Steel 1/2" industrial plug from the Foster 5 Series — ...

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$ 183.00
$ 183.00 - $ 183.00
$ 183.00
$ 145.00
$ 145.00 - $ 145.00
$ 145.00
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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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$ 517.00
$ 517.00 - $ 517.00
$ 517.00
$ 414.00
$ 414.00 - $ 414.00
$ 414.00

Foster 81-5B, 1/2" Industrial Plug x 1/2" Push-On Hose Stem, 5 Series, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 81-5B is a Brass 1/2" industrial plug from the Foster 5 Series —...

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$ 517.00
$ 517.00 - $ 517.00
$ 517.00
$ 414.00
$ 414.00 - $ 414.00
$ 414.00
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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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$ 639.00
$ 639.00 - $ 639.00
$ 639.00
$ 512.00
$ 512.00 - $ 512.00
$ 512.00

Foster BL1815, 1/2" Industrial Coupler x 1/2" Push-On Hose Stem, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL1815 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 639.00
$ 639.00 - $ 639.00
$ 639.00
$ 512.00
$ 512.00 - $ 512.00
$ 512.00
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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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$ 703.00
$ 703.00 - $ 703.00
$ 703.00
$ 561.00
$ 561.00 - $ 561.00
$ 561.00

Foster BL4015, 1/2" Industrial Coupler x 1/4" Female NPT, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL4015 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 703.00
$ 703.00 - $ 703.00
$ 703.00
$ 561.00
$ 561.00 - $ 561.00
$ 561.00
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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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$ 703.00
$ 703.00 - $ 703.00
$ 703.00
$ 561.00
$ 561.00 - $ 561.00
$ 561.00

Foster BL4905, 1/2" Industrial Coupler x 1/4" Male NPT, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL4905 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 703.00
$ 703.00 - $ 703.00
$ 703.00
$ 561.00
$ 561.00 - $ 561.00
$ 561.00
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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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$ 638.00
$ 638.00 - $ 638.00
$ 638.00
$ 510.00
$ 510.00 - $ 510.00
$ 510.00

Foster BL5005, 1/2" Industrial Coupler x 3/8" Female NPT, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5005 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 638.00
$ 638.00 - $ 638.00
$ 638.00
$ 510.00
$ 510.00 - $ 510.00
$ 510.00
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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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$ 638.00
$ 638.00 - $ 638.00
$ 638.00
$ 510.00
$ 510.00 - $ 510.00
$ 510.00

Foster BL5105, 1/2" Industrial Coupler x 3/8" Male NPT, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5105 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 638.00
$ 638.00 - $ 638.00
$ 638.00
$ 510.00
$ 510.00 - $ 510.00
$ 510.00
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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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$ 645.00
$ 645.00 - $ 645.00
$ 645.00
$ 515.00
$ 515.00 - $ 515.00
$ 515.00

Foster BL5205, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5205 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 645.00
$ 645.00 - $ 645.00
$ 645.00
$ 515.00
$ 515.00 - $ 515.00
$ 515.00
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 %
$ 645.00
$ 645.00 - $ 645.00
$ 645.00
$ 515.00
$ 515.00 - $ 515.00
$ 515.00

Foster BL5305, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5305 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 645.00
$ 645.00 - $ 645.00
$ 645.00
$ 515.00
$ 515.00 - $ 515.00
$ 515.00
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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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$ 652.00
$ 652.00 - $ 652.00
$ 652.00
$ 521.00
$ 521.00 - $ 521.00
$ 521.00

Foster BL5405, 1/2" Industrial Coupler x 3/4" Female NPT, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5405 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 652.00
$ 652.00 - $ 652.00
$ 652.00
$ 521.00
$ 521.00 - $ 521.00
$ 521.00
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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 %
$ 652.00
$ 652.00 - $ 652.00
$ 652.00
$ 521.00
$ 521.00 - $ 521.00
$ 521.00

Foster BL5505, 1/2" Industrial Coupler x 3/4" Male NPT, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5505 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 652.00
$ 652.00 - $ 652.00
$ 652.00
$ 521.00
$ 521.00 - $ 521.00
$ 521.00
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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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$ 710.00
$ 710.00 - $ 710.00
$ 710.00
$ 568.00
$ 568.00 - $ 568.00
$ 568.00

Foster BL5605, 1/2" Industrial Coupler x 1/4" Hose ID, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5605 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 710.00
$ 710.00 - $ 710.00
$ 710.00
$ 568.00
$ 568.00 - $ 568.00
$ 568.00
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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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$ 687.00
$ 687.00 - $ 687.00
$ 687.00
$ 549.00
$ 549.00 - $ 549.00
$ 549.00

Foster BL5705, 1/2" Industrial Coupler x 3/8" Hose ID, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5705 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 687.00
$ 687.00 - $ 687.00
$ 687.00
$ 549.00
$ 549.00 - $ 549.00
$ 549.00
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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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$ 691.00
$ 691.00 - $ 691.00
$ 691.00
$ 553.00
$ 553.00 - $ 553.00
$ 553.00

Foster BL5805, 1/2" Industrial Coupler x 1/2" Hose ID, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5805 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 691.00
$ 691.00 - $ 691.00
$ 691.00
$ 553.00
$ 553.00 - $ 553.00
$ 553.00
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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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$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00

Foster BL5905, 1/2" Industrial Coupler x 3/4" Hose ID, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BL5905 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
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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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$ 758.00
$ 758.00 - $ 758.00
$ 758.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00

Foster BLSD11-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BLSD11-5 is a Brass/Steel 1/2" industrial coupler from the Foste...

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$ 758.00
$ 758.00 - $ 758.00
$ 758.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00
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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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$ 779.00
$ 779.00 - $ 779.00
$ 779.00
$ 623.00
$ 623.00 - $ 623.00
$ 623.00

Foster BLSD9-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BLSD9-5 is a Brass/Steel 1/2" industrial coupler from the Foster...

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$ 779.00
$ 779.00 - $ 779.00
$ 779.00
$ 623.00
$ 623.00 - $ 623.00
$ 623.00
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