Skip to content

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.

Filters

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 749.00
$ 749.00 - $ 749.00
$ 749.00
$ 600.00
$ 600.00 - $ 600.00
$ 600.00

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...

View full details
$ 749.00
$ 749.00 - $ 749.00
$ 749.00
$ 600.00
$ 600.00 - $ 600.00
$ 600.00
Save 20% Save %
Save 20% Save %
$ 749.00
$ 749.00 - $ 749.00
$ 749.00
$ 600.00
$ 600.00 - $ 600.00
$ 600.00

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...

View full details
$ 749.00
$ 749.00 - $ 749.00
$ 749.00
$ 600.00
$ 600.00 - $ 600.00
$ 600.00
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
$ 708.00
$ 708.00 - $ 708.00
$ 708.00

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 ...

View full details
$ 884.00
$ 884.00 - $ 884.00
$ 884.00
$ 708.00
$ 708.00 - $ 708.00
$ 708.00
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 %
$ 768.00
$ 768.00 - $ 768.00
$ 768.00
$ 615.00
$ 615.00 - $ 615.00
$ 615.00

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...

View full details
$ 768.00
$ 768.00 - $ 768.00
$ 768.00
$ 615.00
$ 615.00 - $ 615.00
$ 615.00
Save 20% Save %
Save 20% Save %
$ 768.00
$ 768.00 - $ 768.00
$ 768.00
$ 615.00
$ 615.00 - $ 615.00
$ 615.00

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...

View full details
$ 768.00
$ 768.00 - $ 768.00
$ 768.00
$ 615.00
$ 615.00 - $ 615.00
$ 615.00
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 %
$ 772.00
$ 772.00 - $ 772.00
$ 772.00
$ 619.00
$ 619.00 - $ 619.00
$ 619.00

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...

View full details
$ 772.00
$ 772.00 - $ 772.00
$ 772.00
$ 619.00
$ 619.00 - $ 619.00
$ 619.00
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 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...

View full details
$ 846.00
$ 846.00 - $ 846.00
$ 846.00
$ 677.00
$ 677.00 - $ 677.00
$ 677.00
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 %
$ 760.00
$ 760.00 - $ 760.00
$ 760.00
$ 608.00
$ 608.00 - $ 608.00
$ 608.00

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...

View full details
$ 760.00
$ 760.00 - $ 760.00
$ 760.00
$ 608.00
$ 608.00 - $ 608.00
$ 608.00
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 %
$ 849.00
$ 849.00 - $ 849.00
$ 849.00
$ 679.00
$ 679.00 - $ 679.00
$ 679.00

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...

View full details
$ 849.00
$ 849.00 - $ 849.00
$ 849.00
$ 679.00
$ 679.00 - $ 679.00
$ 679.00
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 %
$ 860.00
$ 860.00 - $ 860.00
$ 860.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00

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 ...

View full details
$ 860.00
$ 860.00 - $ 860.00
$ 860.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00
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 %
$ 767.00
$ 767.00 - $ 767.00
$ 767.00
$ 613.00
$ 613.00 - $ 613.00
$ 613.00

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...

View full details
$ 767.00
$ 767.00 - $ 767.00
$ 767.00
$ 613.00
$ 613.00 - $ 613.00
$ 613.00
Save 20% Save %
Save 20% Save %
$ 767.00
$ 767.00 - $ 767.00
$ 767.00
$ 613.00
$ 613.00 - $ 613.00
$ 613.00

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...

View full details
$ 767.00
$ 767.00 - $ 767.00
$ 767.00
$ 613.00
$ 613.00 - $ 613.00
$ 613.00
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 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...

View full details
$ 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 %
$ 832.00
$ 832.00 - $ 832.00
$ 832.00
$ 665.00
$ 665.00 - $ 665.00
$ 665.00

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...

View full details
$ 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 %
$ 775.00
$ 775.00 - $ 775.00
$ 775.00
$ 620.00
$ 620.00 - $ 620.00
$ 620.00

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...

View full details
$ 775.00
$ 775.00 - $ 775.00
$ 775.00
$ 620.00
$ 620.00 - $ 620.00
$ 620.00
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 %
$ 849.00
$ 849.00 - $ 849.00
$ 849.00
$ 679.00
$ 679.00 - $ 679.00
$ 679.00

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...

View full details
$ 849.00
$ 849.00 - $ 849.00
$ 849.00
$ 679.00
$ 679.00 - $ 679.00
$ 679.00
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 %
$ 796.00
$ 796.00 - $ 796.00
$ 796.00
$ 637.00
$ 637.00 - $ 637.00
$ 637.00

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...

View full details
$ 796.00
$ 796.00 - $ 796.00
$ 796.00
$ 637.00
$ 637.00 - $ 637.00
$ 637.00
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 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...

View full details
$ 1,018.00
$ 1,018.00 - $ 1,018.00
$ 1,018.00
$ 815.00
$ 815.00 - $ 815.00
$ 815.00
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 %
$ 1,090.00
$ 1,090.00 - $ 1,090.00
$ 1,090.00
$ 873.00
$ 873.00 - $ 873.00
$ 873.00

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...

View full details
$ 1,090.00
$ 1,090.00 - $ 1,090.00
$ 1,090.00
$ 873.00
$ 873.00 - $ 873.00
$ 873.00
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 %
$ 1,039.00
$ 1,039.00 - $ 1,039.00
$ 1,039.00
$ 830.00
$ 830.00 - $ 830.00
$ 830.00

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...

View full details
$ 1,039.00
$ 1,039.00 - $ 1,039.00
$ 1,039.00
$ 830.00
$ 830.00 - $ 830.00
$ 830.00
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 %
$ 1,123.00
$ 1,123.00 - $ 1,123.00
$ 1,123.00
$ 899.00
$ 899.00 - $ 899.00
$ 899.00

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...

View full details
$ 1,123.00
$ 1,123.00 - $ 1,123.00
$ 1,123.00
$ 899.00
$ 899.00 - $ 899.00
$ 899.00
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 %
$ 1,159.00
$ 1,159.00 - $ 1,159.00
$ 1,159.00
$ 929.00
$ 929.00 - $ 929.00
$ 929.00

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...

View full details
$ 1,159.00
$ 1,159.00 - $ 1,159.00
$ 1,159.00
$ 929.00
$ 929.00 - $ 929.00
$ 929.00
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 %
$ 350.00
$ 350.00 - $ 350.00
$ 350.00
$ 279.00
$ 279.00 - $ 279.00
$ 279.00

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 ...

View full details
$ 350.00
$ 350.00 - $ 350.00
$ 350.00
$ 279.00
$ 279.00 - $ 279.00
$ 279.00
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 %
$ 689.00
$ 689.00 - $ 689.00
$ 689.00
$ 551.00
$ 551.00 - $ 551.00
$ 551.00

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 ...

View full details
$ 689.00
$ 689.00 - $ 689.00
$ 689.00
$ 551.00
$ 551.00 - $ 551.00
$ 551.00
Save 20% Save %

Request a Quote

Bulk and dealer pricing. Tell us what you need and we’ll reply within one business day.