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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 %
$ 335.00
$ 335.00 - $ 335.00
$ 335.00
$ 268.00
$ 268.00 - $ 268.00
$ 268.00

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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$ 335.00
$ 335.00 - $ 335.00
$ 335.00
$ 268.00
$ 268.00 - $ 268.00
$ 268.00
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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 %
$ 335.00
$ 335.00 - $ 335.00
$ 335.00
$ 269.00
$ 269.00 - $ 269.00
$ 269.00

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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$ 335.00
$ 335.00 - $ 335.00
$ 335.00
$ 269.00
$ 269.00 - $ 269.00
$ 269.00
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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 %
$ 657.00
$ 657.00 - $ 657.00
$ 657.00
$ 524.00
$ 524.00 - $ 524.00
$ 524.00

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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$ 657.00
$ 657.00 - $ 657.00
$ 657.00
$ 524.00
$ 524.00 - $ 524.00
$ 524.00
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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 %
$ 699.00
$ 699.00 - $ 699.00
$ 699.00
$ 560.00
$ 560.00 - $ 560.00
$ 560.00

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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$ 699.00
$ 699.00 - $ 699.00
$ 699.00
$ 560.00
$ 560.00 - $ 560.00
$ 560.00
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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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$ 894.00
$ 894.00 - $ 894.00
$ 894.00
$ 715.00
$ 715.00 - $ 715.00
$ 715.00

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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$ 894.00
$ 894.00 - $ 894.00
$ 894.00
$ 715.00
$ 715.00 - $ 715.00
$ 715.00
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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$ 563.00
$ 563.00 - $ 563.00
$ 563.00
$ 452.00
$ 452.00 - $ 452.00
$ 452.00

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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$ 563.00
$ 563.00 - $ 563.00
$ 563.00
$ 452.00
$ 452.00 - $ 452.00
$ 452.00
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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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$ 669.00
$ 669.00 - $ 669.00
$ 669.00
$ 535.00
$ 535.00 - $ 535.00
$ 535.00

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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$ 669.00
$ 669.00 - $ 669.00
$ 669.00
$ 535.00
$ 535.00 - $ 535.00
$ 535.00
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 %
$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00

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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$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
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 %
$ 655.00
$ 655.00 - $ 655.00
$ 655.00
$ 524.00
$ 524.00 - $ 524.00
$ 524.00

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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$ 655.00
$ 655.00 - $ 655.00
$ 655.00
$ 524.00
$ 524.00 - $ 524.00
$ 524.00
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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$ 751.00
$ 751.00 - $ 751.00
$ 751.00
$ 600.00
$ 600.00 - $ 600.00
$ 600.00

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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$ 751.00
$ 751.00 - $ 751.00
$ 751.00
$ 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 %
$ 662.00
$ 662.00 - $ 662.00
$ 662.00
$ 530.00
$ 530.00 - $ 530.00
$ 530.00

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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$ 662.00
$ 662.00 - $ 662.00
$ 662.00
$ 530.00
$ 530.00 - $ 530.00
$ 530.00
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 %
$ 758.00
$ 758.00 - $ 758.00
$ 758.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00

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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$ 758.00
$ 758.00 - $ 758.00
$ 758.00
$ 606.00
$ 606.00 - $ 606.00
$ 606.00
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
$ 678.00
$ 678.00 - $ 678.00
$ 678.00

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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$ 846.00
$ 846.00 - $ 846.00
$ 846.00
$ 678.00
$ 678.00 - $ 678.00
$ 678.00
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 %
$ 834.00
$ 834.00 - $ 834.00
$ 834.00
$ 668.00
$ 668.00 - $ 668.00
$ 668.00

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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$ 834.00
$ 834.00 - $ 834.00
$ 834.00
$ 668.00
$ 668.00 - $ 668.00
$ 668.00
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 %
$ 841.00
$ 841.00 - $ 841.00
$ 841.00
$ 673.00
$ 673.00 - $ 673.00
$ 673.00

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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$ 841.00
$ 841.00 - $ 841.00
$ 841.00
$ 673.00
$ 673.00 - $ 673.00
$ 673.00
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 %
$ 852.00
$ 852.00 - $ 852.00
$ 852.00
$ 682.00
$ 682.00 - $ 682.00
$ 682.00

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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$ 852.00
$ 852.00 - $ 852.00
$ 852.00
$ 682.00
$ 682.00 - $ 682.00
$ 682.00
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 %
$ 859.00
$ 859.00 - $ 859.00
$ 859.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00

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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$ 859.00
$ 859.00 - $ 859.00
$ 859.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00
Save 20% Save %
Save 20% Save %
$ 859.00
$ 859.00 - $ 859.00
$ 859.00
$ 687.00
$ 687.00 - $ 687.00
$ 687.00

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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$ 859.00
$ 859.00 - $ 859.00
$ 859.00
$ 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 %
$ 866.00
$ 866.00 - $ 866.00
$ 866.00
$ 692.00
$ 692.00 - $ 692.00
$ 692.00

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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$ 866.00
$ 866.00 - $ 866.00
$ 866.00
$ 692.00
$ 692.00 - $ 692.00
$ 692.00
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
$ 726.00
$ 726.00 - $ 726.00
$ 726.00

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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$ 908.00
$ 908.00 - $ 908.00
$ 908.00
$ 726.00
$ 726.00 - $ 726.00
$ 726.00
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 %
$ 876.00
$ 876.00 - $ 876.00
$ 876.00
$ 701.00
$ 701.00 - $ 701.00
$ 701.00

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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$ 876.00
$ 876.00 - $ 876.00
$ 876.00
$ 701.00
$ 701.00 - $ 701.00
$ 701.00
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 %
$ 915.00
$ 915.00 - $ 915.00
$ 915.00
$ 731.00
$ 731.00 - $ 731.00
$ 731.00

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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$ 915.00
$ 915.00 - $ 915.00
$ 915.00
$ 731.00
$ 731.00 - $ 731.00
$ 731.00
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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$ 884.00
$ 884.00 - $ 884.00
$ 884.00
$ 707.00
$ 707.00 - $ 707.00
$ 707.00

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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$ 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
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$ 887.00
$ 887.00 - $ 887.00
$ 887.00
$ 710.00
$ 710.00 - $ 710.00
$ 710.00

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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$ 887.00
$ 887.00 - $ 887.00
$ 887.00
$ 710.00
$ 710.00 - $ 710.00
$ 710.00
Save 20% Save %

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