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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 %
$ 359.00
$ 359.00 - $ 359.00
$ 359.00
$ 287.00
$ 287.00 - $ 287.00
$ 287.00

Foster PD7-5, 1/2" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster PD7-5 is a Steel 1/2" industrial plug from the Foster 5 Series —...

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$ 359.00
$ 359.00 - $ 359.00
$ 359.00
$ 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 19% Save %
$ 359.00
$ 359.00 - $ 359.00
$ 359.00
$ 289.00
$ 289.00 - $ 289.00
$ 289.00

Foster PD9-5, 1/2" Industrial Plug x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster PD9-5 is a Steel 1/2" industrial plug from the Foster 5 Series —...

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$ 359.00
$ 359.00 - $ 359.00
$ 359.00
$ 289.00
$ 289.00 - $ 289.00
$ 289.00
Save 19% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 705.00
$ 705.00 - $ 705.00
$ 705.00
$ 563.00
$ 563.00 - $ 563.00
$ 563.00

Foster PP13-5, 1/2" Industrial Plug x Reusable Hose Fitting, 1/2" ID x 13/16" OD, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster PP13-5 is a Steel 1/2" industrial plug from the Foster 5 Series ...

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$ 705.00
$ 705.00 - $ 705.00
$ 705.00
$ 563.00
$ 563.00 - $ 563.00
$ 563.00
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 %
$ 751.00
$ 751.00 - $ 751.00
$ 751.00
$ 601.00
$ 601.00 - $ 601.00
$ 601.00

Foster PP15-5, 1/2" Industrial Plug x Reusable Hose Fitting, 1/2" ID x 7/8" OD, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster PP15-5 is a Steel 1/2" industrial plug from the Foster 5 Series ...

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$ 751.00
$ 751.00 - $ 751.00
$ 751.00
$ 601.00
$ 601.00 - $ 601.00
$ 601.00
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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$ 960.00
$ 960.00 - $ 960.00
$ 960.00
$ 768.00
$ 768.00 - $ 768.00
$ 768.00

Foster PP17-5, 1/2" Industrial Plug x Reusable Hose Fitting, 1/2" ID x 15/16" OD, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster PP17-5 is a Steel 1/2" industrial plug from the Foster 5 Series ...

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$ 960.00
$ 960.00 - $ 960.00
$ 960.00
$ 768.00
$ 768.00 - $ 768.00
$ 768.00
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 %
$ 605.00
$ 605.00 - $ 605.00
$ 605.00
$ 485.00
$ 485.00 - $ 485.00
$ 485.00

Foster PP19-5, 1/2" Industrial Plug x Reusable Hose Fitting, 1/2" ID x 1" OD, 5 Series, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster PP19-5 is a Steel 1/2" industrial plug from the Foster 5 Series ...

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$ 605.00
$ 605.00 - $ 605.00
$ 605.00
$ 485.00
$ 485.00 - $ 485.00
$ 485.00
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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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$ 719.00
$ 719.00 - $ 719.00
$ 719.00
$ 574.00
$ 574.00 - $ 574.00
$ 574.00

Foster SD11-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 3/4" OD, 5 Series, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SD11-5 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 719.00
$ 719.00 - $ 719.00
$ 719.00
$ 574.00
$ 574.00 - $ 574.00
$ 574.00
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 %
$ 749.00
$ 749.00 - $ 749.00
$ 749.00
$ 599.00
$ 599.00 - $ 599.00
$ 599.00

Foster SD13-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 13/16" OD, 5 Series, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SD13-5 is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 749.00
$ 749.00 - $ 749.00
$ 749.00
$ 599.00
$ 599.00 - $ 599.00
$ 599.00
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 %
$ 703.00
$ 703.00 - $ 703.00
$ 703.00
$ 563.00
$ 563.00 - $ 563.00
$ 563.00

Foster SD7-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 5 Series, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SD7-5 is a Brass/Steel 1/2" industrial coupler from the Foster 5...

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$ 703.00
$ 703.00 - $ 703.00
$ 703.00
$ 563.00
$ 563.00 - $ 563.00
$ 563.00
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 %
$ 806.00
$ 806.00 - $ 806.00
$ 806.00
$ 645.00
$ 645.00 - $ 645.00
$ 645.00

Foster SD7-5W, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 5/8" OD, 5 Series, Water, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SD7-5W is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 806.00
$ 806.00 - $ 806.00
$ 806.00
$ 645.00
$ 645.00 - $ 645.00
$ 645.00
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 %
$ 711.00
$ 711.00 - $ 711.00
$ 711.00
$ 569.00
$ 569.00 - $ 569.00
$ 569.00

Foster SD9-5, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 5 Series, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SD9-5 is a Brass/Steel 1/2" industrial coupler from the Foster 5...

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$ 711.00
$ 711.00 - $ 711.00
$ 711.00
$ 569.00
$ 569.00 - $ 569.00
$ 569.00
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 %
$ 814.00
$ 814.00 - $ 814.00
$ 814.00
$ 650.00
$ 650.00 - $ 650.00
$ 650.00

Foster SD9-5W, 1/2" Industrial Coupler x Reusable Hose Fitting, 3/8" ID x 11/16" OD, 5 Series, Water, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SD9-5W is a Brass/Steel 1/2" industrial coupler from the Foster ...

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$ 814.00
$ 814.00 - $ 814.00
$ 814.00
$ 650.00
$ 650.00 - $ 650.00
$ 650.00
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 %
$ 909.00
$ 909.00 - $ 909.00
$ 909.00
$ 728.00
$ 728.00 - $ 728.00
$ 728.00

Foster SL4015, 1/2" Industrial Coupler x 1/4" Female NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL4015 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 909.00
$ 909.00 - $ 909.00
$ 909.00
$ 728.00
$ 728.00 - $ 728.00
$ 728.00
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 %
$ 895.00
$ 895.00 - $ 895.00
$ 895.00
$ 717.00
$ 717.00 - $ 717.00
$ 717.00

Foster SL4905, 1/2" Industrial Coupler x 1/4" Male NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL4905 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 895.00
$ 895.00 - $ 895.00
$ 895.00
$ 717.00
$ 717.00 - $ 717.00
$ 717.00
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 %
$ 903.00
$ 903.00 - $ 903.00
$ 903.00
$ 722.00
$ 722.00 - $ 722.00
$ 722.00

Foster SL5005, 1/2" Industrial Coupler x 3/8" Female NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5005 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 903.00
$ 903.00 - $ 903.00
$ 903.00
$ 722.00
$ 722.00 - $ 722.00
$ 722.00
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 %
$ 914.00
$ 914.00 - $ 914.00
$ 914.00
$ 732.00
$ 732.00 - $ 732.00
$ 732.00

Foster SL5105, 1/2" Industrial Coupler x 3/8" Male NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5105 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 914.00
$ 914.00 - $ 914.00
$ 914.00
$ 732.00
$ 732.00 - $ 732.00
$ 732.00
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 %
$ 922.00
$ 922.00 - $ 922.00
$ 922.00
$ 738.00
$ 738.00 - $ 738.00
$ 738.00

Foster SL5205, 1/2" Industrial Coupler x 1/2" Female NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5205 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 922.00
$ 922.00 - $ 922.00
$ 922.00
$ 738.00
$ 738.00 - $ 738.00
$ 738.00
Save 20% Save %
Save 20% Save %
$ 922.00
$ 922.00 - $ 922.00
$ 922.00
$ 738.00
$ 738.00 - $ 738.00
$ 738.00

Foster SL5205, 5 Series, Industrial Coupler, Automatic, 1/2" Female NPT, Brass, Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5205 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 922.00
$ 922.00 - $ 922.00
$ 922.00
$ 738.00
$ 738.00 - $ 738.00
$ 738.00
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 %
$ 930.00
$ 930.00 - $ 930.00
$ 930.00
$ 743.00
$ 743.00 - $ 743.00
$ 743.00

Foster SL5305, 1/2" Industrial Coupler x 1/2" Male NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5305 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 930.00
$ 930.00 - $ 930.00
$ 930.00
$ 743.00
$ 743.00 - $ 743.00
$ 743.00
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 %
$ 975.00
$ 975.00 - $ 975.00
$ 975.00
$ 779.00
$ 779.00 - $ 779.00
$ 779.00

Foster SL5405, 1/2" Industrial Coupler x 3/4" Female NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5405 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 975.00
$ 975.00 - $ 975.00
$ 975.00
$ 779.00
$ 779.00 - $ 779.00
$ 779.00
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 %
$ 941.00
$ 941.00 - $ 941.00
$ 941.00
$ 753.00
$ 753.00 - $ 753.00
$ 753.00

Foster SL5505, 1/2" Industrial Coupler x 3/4" Male NPT, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5505 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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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 %
$ 983.00
$ 983.00 - $ 983.00
$ 983.00
$ 785.00
$ 785.00 - $ 785.00
$ 785.00

Foster SL5605, 1/2" Industrial Coupler x 1/4" Hose ID, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5605 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 983.00
$ 983.00 - $ 983.00
$ 983.00
$ 785.00
$ 785.00 - $ 785.00
$ 785.00
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 %
$ 949.00
$ 949.00 - $ 949.00
$ 949.00
$ 759.00
$ 759.00 - $ 759.00
$ 759.00

Foster SL5705, 1/2" Industrial Coupler x 3/8" Hose ID, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5705 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 949.00
$ 949.00 - $ 949.00
$ 949.00
$ 759.00
$ 759.00 - $ 759.00
$ 759.00
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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$ 952.00
$ 952.00 - $ 952.00
$ 952.00
$ 762.00
$ 762.00 - $ 762.00
$ 762.00

Foster SL5805, 1/2" Industrial Coupler x 1/2" Hose ID, 5 Series, Automatic Sleeve Lock, Brass

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster SL5805 is a Brass 1/2" industrial coupler from the Foster 5 Seri...

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$ 952.00
$ 952.00 - $ 952.00
$ 952.00
$ 762.00
$ 762.00 - $ 762.00
$ 762.00
Save 20% Save %

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