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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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$ 210.00
$ 210.00 - $ 210.00
$ 210.00
$ 169.00
$ 169.00 - $ 169.00
$ 169.00

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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$ 210.00
$ 210.00 - $ 210.00
$ 210.00
$ 169.00
$ 169.00 - $ 169.00
$ 169.00
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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 %
$ 250.00
$ 250.00 - $ 250.00
$ 250.00
$ 200.00
$ 200.00 - $ 200.00
$ 200.00

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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$ 250.00
$ 250.00 - $ 250.00
$ 250.00
$ 200.00
$ 200.00 - $ 200.00
$ 200.00
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$ 250.00
$ 250.00 - $ 250.00
$ 250.00
$ 200.00
$ 200.00 - $ 200.00
$ 200.00

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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$ 250.00
$ 250.00 - $ 250.00
$ 250.00
$ 200.00
$ 200.00 - $ 200.00
$ 200.00
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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
$ 205.00
$ 205.00 - $ 205.00
$ 205.00

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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$ 257.00
$ 257.00 - $ 257.00
$ 257.00
$ 205.00
$ 205.00 - $ 205.00
$ 205.00
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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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$ 341.00
$ 341.00 - $ 341.00
$ 341.00
$ 272.00
$ 272.00 - $ 272.00
$ 272.00

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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$ 341.00
$ 341.00 - $ 341.00
$ 341.00
$ 272.00
$ 272.00 - $ 272.00
$ 272.00
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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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$ 190.00
$ 190.00 - $ 190.00
$ 190.00
$ 152.00
$ 152.00 - $ 152.00
$ 152.00

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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$ 190.00
$ 190.00 - $ 190.00
$ 190.00
$ 152.00
$ 152.00 - $ 152.00
$ 152.00
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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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$ 178.00
$ 178.00 - $ 178.00
$ 178.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00

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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$ 178.00
$ 178.00 - $ 178.00
$ 178.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00
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$ 178.00
$ 178.00 - $ 178.00
$ 178.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00

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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$ 178.00
$ 178.00 - $ 178.00
$ 178.00
$ 142.00
$ 142.00 - $ 142.00
$ 142.00
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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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$ 503.00
$ 503.00 - $ 503.00
$ 503.00
$ 403.00
$ 403.00 - $ 403.00
$ 403.00

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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$ 503.00
$ 503.00 - $ 503.00
$ 503.00
$ 403.00
$ 403.00 - $ 403.00
$ 403.00
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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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$ 622.00
$ 622.00 - $ 622.00
$ 622.00
$ 498.00
$ 498.00 - $ 498.00
$ 498.00

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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$ 622.00
$ 622.00 - $ 622.00
$ 622.00
$ 498.00
$ 498.00 - $ 498.00
$ 498.00
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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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$ 684.00
$ 684.00 - $ 684.00
$ 684.00
$ 546.00
$ 546.00 - $ 546.00
$ 546.00

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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$ 684.00
$ 684.00 - $ 684.00
$ 684.00
$ 546.00
$ 546.00 - $ 546.00
$ 546.00
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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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$ 684.00
$ 684.00 - $ 684.00
$ 684.00
$ 546.00
$ 546.00 - $ 546.00
$ 546.00

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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$ 684.00
$ 684.00 - $ 684.00
$ 684.00
$ 546.00
$ 546.00 - $ 546.00
$ 546.00
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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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$ 620.00
$ 620.00 - $ 620.00
$ 620.00
$ 496.00
$ 496.00 - $ 496.00
$ 496.00

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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$ 620.00
$ 620.00 - $ 620.00
$ 620.00
$ 496.00
$ 496.00 - $ 496.00
$ 496.00
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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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$ 620.00
$ 620.00 - $ 620.00
$ 620.00
$ 496.00
$ 496.00 - $ 496.00
$ 496.00

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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$ 620.00
$ 620.00 - $ 620.00
$ 620.00
$ 496.00
$ 496.00 - $ 496.00
$ 496.00
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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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$ 627.00
$ 627.00 - $ 627.00
$ 627.00
$ 501.00
$ 501.00 - $ 501.00
$ 501.00

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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$ 627.00
$ 627.00 - $ 627.00
$ 627.00
$ 501.00
$ 501.00 - $ 501.00
$ 501.00
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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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$ 627.00
$ 627.00 - $ 627.00
$ 627.00
$ 501.00
$ 501.00 - $ 501.00
$ 501.00

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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$ 627.00
$ 627.00 - $ 627.00
$ 627.00
$ 501.00
$ 501.00 - $ 501.00
$ 501.00
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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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$ 634.00
$ 634.00 - $ 634.00
$ 634.00
$ 507.00
$ 507.00 - $ 507.00
$ 507.00

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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$ 634.00
$ 634.00 - $ 634.00
$ 634.00
$ 507.00
$ 507.00 - $ 507.00
$ 507.00
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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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$ 634.00
$ 634.00 - $ 634.00
$ 634.00
$ 507.00
$ 507.00 - $ 507.00
$ 507.00

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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$ 634.00
$ 634.00 - $ 634.00
$ 634.00
$ 507.00
$ 507.00 - $ 507.00
$ 507.00
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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 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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$ 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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$ 668.00
$ 668.00 - $ 668.00
$ 668.00
$ 534.00
$ 534.00 - $ 534.00
$ 534.00

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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$ 668.00
$ 668.00 - $ 668.00
$ 668.00
$ 534.00
$ 534.00 - $ 534.00
$ 534.00
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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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$ 672.00
$ 672.00 - $ 672.00
$ 672.00
$ 538.00
$ 538.00 - $ 538.00
$ 538.00

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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$ 672.00
$ 672.00 - $ 672.00
$ 672.00
$ 538.00
$ 538.00 - $ 538.00
$ 538.00
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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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$ 679.00
$ 679.00 - $ 679.00
$ 679.00
$ 543.00
$ 543.00 - $ 543.00
$ 543.00

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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$ 679.00
$ 679.00 - $ 679.00
$ 679.00
$ 543.00
$ 543.00 - $ 543.00
$ 543.00
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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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$ 737.00
$ 737.00 - $ 737.00
$ 737.00
$ 589.00
$ 589.00 - $ 589.00
$ 589.00

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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$ 737.00
$ 737.00 - $ 737.00
$ 737.00
$ 589.00
$ 589.00 - $ 589.00
$ 589.00
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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 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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$ 758.00
$ 758.00 - $ 758.00
$ 758.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00
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