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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 %
$ 770.00
$ 770.00 - $ 770.00
$ 770.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00

Foster FM5505, 1/2" Industrial Coupler x 3/4" Male NPT, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5505 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 770.00
$ 770.00 - $ 770.00
$ 770.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00
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Save 20% Save %
$ 770.00
$ 770.00 - $ 770.00
$ 770.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00

Foster FM5505, 5 Series, Industrial Coupler, Automatic, 3/4" Male NPT, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5505 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 770.00
$ 770.00 - $ 770.00
$ 770.00
$ 616.00
$ 616.00 - $ 616.00
$ 616.00
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 %
$ 908.00
$ 908.00 - $ 908.00
$ 908.00
$ 728.00
$ 728.00 - $ 728.00
$ 728.00

Foster FM5505S, 1/2" Industrial Coupler x 3/4" Male NPT, 5 Series, Automatic, Steam/EPDM, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5505S is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 908.00
$ 908.00 - $ 908.00
$ 908.00
$ 728.00
$ 728.00 - $ 728.00
$ 728.00
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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 %
$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 632.00
$ 632.00 - $ 632.00
$ 632.00

Foster FM5605, 1/2" Industrial Coupler x 1/4" Hose ID, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5605 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 632.00
$ 632.00 - $ 632.00
$ 632.00
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Save 20% Save %
$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 632.00
$ 632.00 - $ 632.00
$ 632.00

Foster FM5605, 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 FM5605 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 790.00
$ 790.00 - $ 790.00
$ 790.00
$ 632.00
$ 632.00 - $ 632.00
$ 632.00
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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$ 793.00
$ 793.00 - $ 793.00
$ 793.00
$ 636.00
$ 636.00 - $ 636.00
$ 636.00

Foster FM5705, 1/2" Industrial Coupler x 3/8" Hose ID, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5705 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 793.00
$ 793.00 - $ 793.00
$ 793.00
$ 636.00
$ 636.00 - $ 636.00
$ 636.00
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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$ 869.00
$ 869.00 - $ 869.00
$ 869.00
$ 696.00
$ 696.00 - $ 696.00
$ 696.00

Foster FM5705H, 1/2" Industrial Coupler x 3/8" Hose ID, 5 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5705H is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 869.00
$ 869.00 - $ 869.00
$ 869.00
$ 696.00
$ 696.00 - $ 696.00
$ 696.00
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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$ 781.00
$ 781.00 - $ 781.00
$ 781.00
$ 625.00
$ 625.00 - $ 625.00
$ 625.00

Foster FM5805, 1/2" Industrial Coupler x 1/2" Hose ID, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5805 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 781.00
$ 781.00 - $ 781.00
$ 781.00
$ 625.00
$ 625.00 - $ 625.00
$ 625.00
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
$ 698.00
$ 698.00 - $ 698.00
$ 698.00

Foster FM5805H, 1/2" Industrial Coupler x 1/2" Hose ID, 5 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5805H is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 873.00
$ 873.00 - $ 873.00
$ 873.00
$ 698.00
$ 698.00 - $ 698.00
$ 698.00
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 %
$ 884.00
$ 884.00 - $ 884.00
$ 884.00
$ 707.00
$ 707.00 - $ 707.00
$ 707.00

Foster FM5805W, 1/2" Industrial Coupler x 1/2" Hose ID, 5 Series, Automatic, Water, Brass/SS

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5805W is a Brass/SS 1/2" industrial coupler from the Foster 5 ...

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$ 884.00
$ 884.00 - $ 884.00
$ 884.00
$ 707.00
$ 707.00 - $ 707.00
$ 707.00
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 %
$ 788.00
$ 788.00 - $ 788.00
$ 788.00
$ 630.00
$ 630.00 - $ 630.00
$ 630.00

Foster FM5905, 1/2" Industrial Coupler x 3/4" Hose ID, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 788.00
$ 788.00 - $ 788.00
$ 788.00
$ 630.00
$ 630.00 - $ 630.00
$ 630.00
Save 20% Save %
Save 20% Save %
$ 788.00
$ 788.00 - $ 788.00
$ 788.00
$ 630.00
$ 630.00 - $ 630.00
$ 630.00

Foster FM5905, 5 Series, Industrial Coupler, Automatic, 3/4" Hose Barb, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FM5905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 788.00
$ 788.00 - $ 788.00
$ 788.00
$ 630.00
$ 630.00 - $ 630.00
$ 630.00
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 %
$ 838.00
$ 838.00 - $ 838.00
$ 838.00
$ 669.00
$ 669.00 - $ 669.00
$ 669.00

Foster FMSD11-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD11-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 838.00
$ 838.00 - $ 838.00
$ 838.00
$ 669.00
$ 669.00 - $ 669.00
$ 669.00
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 %
$ 855.00
$ 855.00 - $ 855.00
$ 855.00
$ 684.00
$ 684.00 - $ 684.00
$ 684.00

Foster FMSD13-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD13-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 855.00
$ 855.00 - $ 855.00
$ 855.00
$ 684.00
$ 684.00 - $ 684.00
$ 684.00
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 %
$ 797.00
$ 797.00 - $ 797.00
$ 797.00
$ 638.00
$ 638.00 - $ 638.00
$ 638.00

Foster FMSD7-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD7-5 is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 797.00
$ 797.00 - $ 797.00
$ 797.00
$ 638.00
$ 638.00 - $ 638.00
$ 638.00
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
$ 698.00
$ 698.00 - $ 698.00
$ 698.00

Foster FMSD7-5H, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 5 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD7-5H is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 873.00
$ 873.00 - $ 873.00
$ 873.00
$ 698.00
$ 698.00 - $ 698.00
$ 698.00
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 %
$ 818.00
$ 818.00 - $ 818.00
$ 818.00
$ 655.00
$ 655.00 - $ 655.00
$ 655.00

Foster FMSD9-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSD9-5 is a Brass 1/2" industrial coupler from the Foster 5 Ser...

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$ 818.00
$ 818.00 - $ 818.00
$ 818.00
$ 655.00
$ 655.00 - $ 655.00
$ 655.00
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 %
$ 1,046.00
$ 1,046.00 - $ 1,046.00
$ 1,046.00
$ 838.00
$ 838.00 - $ 838.00
$ 838.00

Foster FMSP13-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 13/16" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP13-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,046.00
$ 1,046.00 - $ 1,046.00
$ 1,046.00
$ 838.00
$ 838.00 - $ 838.00
$ 838.00
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 %
$ 1,121.00
$ 1,121.00 - $ 1,121.00
$ 1,121.00
$ 898.00
$ 898.00 - $ 898.00
$ 898.00

Foster FMSP13-5H, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 13/16" OD, 5 Series, Automatic, Heat/Viton, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP13-5H is a Brass 1/2" industrial coupler from the Foster 5 S...

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$ 1,121.00
$ 1,121.00 - $ 1,121.00
$ 1,121.00
$ 898.00
$ 898.00 - $ 898.00
$ 898.00
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 %
$ 1,068.00
$ 1,068.00 - $ 1,068.00
$ 1,068.00
$ 853.00
$ 853.00 - $ 853.00
$ 853.00

Foster FMSP15-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 7/8" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP15-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,068.00
$ 1,068.00 - $ 1,068.00
$ 1,068.00
$ 853.00
$ 853.00 - $ 853.00
$ 853.00
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 %
$ 1,154.00
$ 1,154.00 - $ 1,154.00
$ 1,154.00
$ 924.00
$ 924.00 - $ 924.00
$ 924.00

Foster FMSP17-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 15/16" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP17-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,154.00
$ 1,154.00 - $ 1,154.00
$ 1,154.00
$ 924.00
$ 924.00 - $ 924.00
$ 924.00
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 %
$ 1,192.00
$ 1,192.00 - $ 1,192.00
$ 1,192.00
$ 954.00
$ 954.00 - $ 954.00
$ 954.00

Foster FMSP19-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 1/2" ID x 1" OD, 5 Series, Automatic, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster FMSP19-5 is a Brass 1/2" industrial coupler from the Foster 5 Se...

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$ 1,192.00
$ 1,192.00 - $ 1,192.00
$ 1,192.00
$ 954.00
$ 954.00 - $ 954.00
$ 954.00
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 %
$ 360.00
$ 360.00 - $ 360.00
$ 360.00
$ 287.00
$ 287.00 - $ 287.00
$ 287.00

Foster PD11-5, 1/2" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster PD11-5 is a Steel 1/2" industrial plug from the Foster 5 Series ...

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$ 360.00
$ 360.00 - $ 360.00
$ 360.00
$ 287.00
$ 287.00 - $ 287.00
$ 287.00
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 %
$ 708.00
$ 708.00 - $ 708.00
$ 708.00
$ 567.00
$ 567.00 - $ 567.00
$ 567.00

Foster PD13-5, 1/2" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster PD13-5 is a Steel 1/2" industrial plug from the Foster 5 Series ...

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$ 708.00
$ 708.00 - $ 708.00
$ 708.00
$ 567.00
$ 567.00 - $ 567.00
$ 567.00
Save 20% Save %

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