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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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Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 941.00
$ 941.00 - $ 941.00
$ 941.00
$ 753.00
$ 753.00 - $ 753.00
$ 753.00

Foster BLSP13-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 13/16" OD, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BLSP13-5 is a Brass/Steel 1/2" industrial coupler from the Foste...

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$ 941.00
$ 941.00 - $ 941.00
$ 941.00
$ 753.00
$ 753.00 - $ 753.00
$ 753.00
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 %
$ 1,018.00
$ 1,018.00 - $ 1,018.00
$ 1,018.00
$ 815.00
$ 815.00 - $ 815.00
$ 815.00

Foster BLSP15-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 7/8" OD, 5 Series, Ball Lock, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster BLSP15-5 is a Brass/Steel 1/2" industrial coupler from the Foste...

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$ 1,018.00
$ 1,018.00 - $ 1,018.00
$ 1,018.00
$ 815.00
$ 815.00 - $ 815.00
$ 815.00
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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 %
$ 681.00
$ 681.00 - $ 681.00
$ 681.00
$ 545.00
$ 545.00 - $ 545.00
$ 545.00

Foster FM1815, 1/2" Industrial Coupler x 1/2" Push-On Hose Stem, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM1815 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 681.00
$ 681.00 - $ 681.00
$ 681.00
$ 545.00
$ 545.00 - $ 545.00
$ 545.00
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Save 20% Save %
$ 681.00
$ 681.00 - $ 681.00
$ 681.00
$ 545.00
$ 545.00 - $ 545.00
$ 545.00

Foster FM1815, 5 Series, Industrial Coupler, Automatic, 1/2" Push-On Hose Barb, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM1815 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 681.00
$ 681.00 - $ 681.00
$ 681.00
$ 545.00
$ 545.00 - $ 545.00
$ 545.00
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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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$ 705.00
$ 705.00 - $ 705.00
$ 705.00
$ 565.00
$ 565.00 - $ 565.00
$ 565.00

Foster FM4015, 1/2" Industrial Coupler x 1/4" Female NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM4015 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 705.00
$ 705.00 - $ 705.00
$ 705.00
$ 565.00
$ 565.00 - $ 565.00
$ 565.00
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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 %
$ 720.00
$ 720.00 - $ 720.00
$ 720.00
$ 576.00
$ 576.00 - $ 576.00
$ 576.00

Foster FM4905, 1/2" Industrial Coupler x 1/4" Male NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM4905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 720.00
$ 720.00 - $ 720.00
$ 720.00
$ 576.00
$ 576.00 - $ 576.00
$ 576.00
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Save 20% Save %
$ 720.00
$ 720.00 - $ 720.00
$ 720.00
$ 576.00
$ 576.00 - $ 576.00
$ 576.00

Foster FM4905, 5 Series, Industrial Coupler, Automatic, 1/4" Hose Barb, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM4905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 720.00
$ 720.00 - $ 720.00
$ 720.00
$ 576.00
$ 576.00 - $ 576.00
$ 576.00
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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 %
$ 727.00
$ 727.00 - $ 727.00
$ 727.00
$ 581.00
$ 581.00 - $ 581.00
$ 581.00

Foster FM5005, 1/2" Industrial Coupler x 3/8" Female NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5005 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 727.00
$ 727.00 - $ 727.00
$ 727.00
$ 581.00
$ 581.00 - $ 581.00
$ 581.00
Save 20% Save %
Save 20% Save %
$ 727.00
$ 727.00 - $ 727.00
$ 727.00
$ 581.00
$ 581.00 - $ 581.00
$ 581.00

Foster FM5005, 5 Series, Industrial Coupler, Automatic, 3/8" Female NPT, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5005 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 727.00
$ 727.00 - $ 727.00
$ 727.00
$ 581.00
$ 581.00 - $ 581.00
$ 581.00
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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$ 799.00
$ 799.00 - $ 799.00
$ 799.00
$ 641.00
$ 641.00 - $ 641.00
$ 641.00

Foster FM5005H, 1/2" Industrial Coupler x 3/8" Female NPT, 5 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5005H is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 799.00
$ 799.00 - $ 799.00
$ 799.00
$ 641.00
$ 641.00 - $ 641.00
$ 641.00
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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$ 879.00
$ 879.00 - $ 879.00
$ 879.00
$ 703.00
$ 703.00 - $ 703.00
$ 703.00

Foster FM5005S, 1/2" Industrial Coupler x 3/8" Female NPT, 5 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5005S is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 879.00
$ 879.00 - $ 879.00
$ 879.00
$ 703.00
$ 703.00 - $ 703.00
$ 703.00
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 %
$ 815.00
$ 815.00 - $ 815.00
$ 815.00
$ 651.00
$ 651.00 - $ 651.00
$ 651.00

Foster FM5005W, 1/2" Industrial Coupler x 3/8" Female NPT, 5 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5005W is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 815.00
$ 815.00 - $ 815.00
$ 815.00
$ 651.00
$ 651.00 - $ 651.00
$ 651.00
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 %
$ 734.00
$ 734.00 - $ 734.00
$ 734.00
$ 588.00
$ 588.00 - $ 588.00
$ 588.00

Foster FM5105, 1/2" Industrial Coupler x 3/8" Male NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5105 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 734.00
$ 734.00 - $ 734.00
$ 734.00
$ 588.00
$ 588.00 - $ 588.00
$ 588.00
Save 20% Save %
Save 20% Save %
$ 734.00
$ 734.00 - $ 734.00
$ 734.00
$ 588.00
$ 588.00 - $ 588.00
$ 588.00

Foster FM5105, 5 Series, Industrial Coupler, Automatic, 3/8" Male NPT, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5105 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 734.00
$ 734.00 - $ 734.00
$ 734.00
$ 588.00
$ 588.00 - $ 588.00
$ 588.00
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 %
$ 724.00
$ 724.00 - $ 724.00
$ 724.00
$ 579.00
$ 579.00 - $ 579.00
$ 579.00

Foster FM5205, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 724.00
$ 724.00 - $ 724.00
$ 724.00
$ 579.00
$ 579.00 - $ 579.00
$ 579.00
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 %
$ 822.00
$ 822.00 - $ 822.00
$ 822.00
$ 656.00
$ 656.00 - $ 656.00
$ 656.00

Foster FM5205H, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205H is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 822.00
$ 822.00 - $ 822.00
$ 822.00
$ 656.00
$ 656.00 - $ 656.00
$ 656.00
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 %
$ 744.00
$ 744.00 - $ 744.00
$ 744.00
$ 594.00
$ 594.00 - $ 594.00
$ 594.00

Foster FM5205LV, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Less Valve, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205LV is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 744.00
$ 744.00 - $ 744.00
$ 744.00
$ 594.00
$ 594.00 - $ 594.00
$ 594.00
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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$ 898.00
$ 898.00 - $ 898.00
$ 898.00
$ 718.00
$ 718.00 - $ 718.00
$ 718.00

Foster FM5205S, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205S is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 898.00
$ 898.00 - $ 898.00
$ 898.00
$ 718.00
$ 718.00 - $ 718.00
$ 718.00
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 %
$ 832.00
$ 832.00 - $ 832.00
$ 832.00
$ 665.00
$ 665.00 - $ 665.00
$ 665.00

Foster FM5205W, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5205W is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 832.00
$ 832.00 - $ 832.00
$ 832.00
$ 665.00
$ 665.00 - $ 665.00
$ 665.00
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 %
$ 755.00
$ 755.00 - $ 755.00
$ 755.00
$ 603.00
$ 603.00 - $ 603.00
$ 603.00

Foster FM5305, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5305 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 755.00
$ 755.00 - $ 755.00
$ 755.00
$ 603.00
$ 603.00 - $ 603.00
$ 603.00
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 %
$ 873.00
$ 873.00 - $ 873.00
$ 873.00
$ 699.00
$ 699.00 - $ 699.00
$ 699.00

Foster FM5305S, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5305S is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 873.00
$ 873.00 - $ 873.00
$ 873.00
$ 699.00
$ 699.00 - $ 699.00
$ 699.00
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 %
$ 839.00
$ 839.00 - $ 839.00
$ 839.00
$ 672.00
$ 672.00 - $ 672.00
$ 672.00

Foster FM5305W, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5305W is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 839.00
$ 839.00 - $ 839.00
$ 839.00
$ 672.00
$ 672.00 - $ 672.00
$ 672.00
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 %
$ 746.00
$ 746.00 - $ 746.00
$ 746.00
$ 598.00
$ 598.00 - $ 598.00
$ 598.00

Foster FM5405, 1/2" Industrial Coupler x 3/4" Female NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5405 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 746.00
$ 746.00 - $ 746.00
$ 746.00
$ 598.00
$ 598.00 - $ 598.00
$ 598.00
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 %
$ 846.00
$ 846.00 - $ 846.00
$ 846.00
$ 677.00
$ 677.00 - $ 677.00
$ 677.00

Foster FM5405W, 1/2" Industrial Coupler x 3/4" Female NPT, 5 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5405W is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 846.00
$ 846.00 - $ 846.00
$ 846.00
$ 677.00
$ 677.00 - $ 677.00
$ 677.00
Save 20% Save %

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