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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 %
$ 18.89
$ 18.89 - $ 18.89
$ 18.89
$ 15.09
$ 15.09 - $ 15.09
$ 15.09

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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$ 18.89
$ 18.89 - $ 18.89
$ 18.89
$ 15.09
$ 15.09 - $ 15.09
$ 15.09
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 %
$ 18.89
$ 18.89 - $ 18.89
$ 18.89
$ 15.19
$ 15.19 - $ 15.19
$ 15.19

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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$ 18.89
$ 18.89 - $ 18.89
$ 18.89
$ 15.19
$ 15.19 - $ 15.19
$ 15.19
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 %
$ 37.09
$ 37.09 - $ 37.09
$ 37.09
$ 29.59
$ 29.59 - $ 29.59
$ 29.59

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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$ 37.09
$ 37.09 - $ 37.09
$ 37.09
$ 29.59
$ 29.59 - $ 29.59
$ 29.59
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 %
$ 39.49
$ 39.49 - $ 39.49
$ 39.49
$ 31.59
$ 31.59 - $ 31.59
$ 31.59

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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$ 39.49
$ 39.49 - $ 39.49
$ 39.49
$ 31.59
$ 31.59 - $ 31.59
$ 31.59
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 %
$ 50.49
$ 50.49 - $ 50.49
$ 50.49
$ 40.39
$ 40.39 - $ 40.39
$ 40.39

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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$ 50.49
$ 50.49 - $ 50.49
$ 50.49
$ 40.39
$ 40.39 - $ 40.39
$ 40.39
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 %
$ 31.79
$ 31.79 - $ 31.79
$ 31.79
$ 25.49
$ 25.49 - $ 25.49
$ 25.49

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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$ 31.79
$ 31.79 - $ 31.79
$ 31.79
$ 25.49
$ 25.49 - $ 25.49
$ 25.49
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 %
$ 37.79
$ 37.79 - $ 37.79
$ 37.79
$ 30.19
$ 30.19 - $ 30.19
$ 30.19

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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$ 37.79
$ 37.79 - $ 37.79
$ 37.79
$ 30.19
$ 30.19 - $ 30.19
$ 30.19
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 %
$ 39.39
$ 39.39 - $ 39.39
$ 39.39
$ 31.49
$ 31.49 - $ 31.49
$ 31.49

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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$ 39.39
$ 39.39 - $ 39.39
$ 39.39
$ 31.49
$ 31.49 - $ 31.49
$ 31.49
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 %
$ 36.99
$ 36.99 - $ 36.99
$ 36.99
$ 29.59
$ 29.59 - $ 29.59
$ 29.59

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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$ 36.99
$ 36.99 - $ 36.99
$ 36.99
$ 29.59
$ 29.59 - $ 29.59
$ 29.59
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 %
$ 42.39
$ 42.39 - $ 42.39
$ 42.39
$ 33.89
$ 33.89 - $ 33.89
$ 33.89

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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$ 42.39
$ 42.39 - $ 42.39
$ 42.39
$ 33.89
$ 33.89 - $ 33.89
$ 33.89
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 %
$ 37.39
$ 37.39 - $ 37.39
$ 37.39
$ 29.89
$ 29.89 - $ 29.89
$ 29.89

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...

View full details
$ 37.39
$ 37.39 - $ 37.39
$ 37.39
$ 29.89
$ 29.89 - $ 29.89
$ 29.89
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 %
$ 42.79
$ 42.79 - $ 42.79
$ 42.79
$ 34.19
$ 34.19 - $ 34.19
$ 34.19

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 ...

View full details
$ 42.79
$ 42.79 - $ 42.79
$ 42.79
$ 34.19
$ 34.19 - $ 34.19
$ 34.19
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 %
$ 47.79
$ 47.79 - $ 47.79
$ 47.79
$ 38.29
$ 38.29 - $ 38.29
$ 38.29

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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$ 47.79
$ 47.79 - $ 47.79
$ 47.79
$ 38.29
$ 38.29 - $ 38.29
$ 38.29
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 %
$ 47.09
$ 47.09 - $ 47.09
$ 47.09
$ 37.69
$ 37.69 - $ 37.69
$ 37.69

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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$ 47.09
$ 47.09 - $ 47.09
$ 47.09
$ 37.69
$ 37.69 - $ 37.69
$ 37.69
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 %
$ 47.49
$ 47.49 - $ 47.49
$ 47.49
$ 37.99
$ 37.99 - $ 37.99
$ 37.99

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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$ 47.49
$ 47.49 - $ 47.49
$ 47.49
$ 37.99
$ 37.99 - $ 37.99
$ 37.99
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 %
$ 48.09
$ 48.09 - $ 48.09
$ 48.09
$ 38.49
$ 38.49 - $ 38.49
$ 38.49

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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$ 48.09
$ 48.09 - $ 48.09
$ 48.09
$ 38.49
$ 38.49 - $ 38.49
$ 38.49
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 %
$ 48.49
$ 48.49 - $ 48.49
$ 48.49
$ 38.79
$ 38.79 - $ 38.79
$ 38.79

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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$ 48.49
$ 48.49 - $ 48.49
$ 48.49
$ 38.79
$ 38.79 - $ 38.79
$ 38.79
Save 20% Save %
Save 20% Save %
$ 48.49
$ 48.49 - $ 48.49
$ 48.49
$ 38.79
$ 38.79 - $ 38.79
$ 38.79

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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$ 48.49
$ 48.49 - $ 48.49
$ 48.49
$ 38.79
$ 38.79 - $ 38.79
$ 38.79
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 %
$ 48.89
$ 48.89 - $ 48.89
$ 48.89
$ 39.09
$ 39.09 - $ 39.09
$ 39.09

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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$ 48.89
$ 48.89 - $ 48.89
$ 48.89
$ 39.09
$ 39.09 - $ 39.09
$ 39.09
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 %
$ 51.29
$ 51.29 - $ 51.29
$ 51.29
$ 40.99
$ 40.99 - $ 40.99
$ 40.99

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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$ 51.29
$ 51.29 - $ 51.29
$ 51.29
$ 40.99
$ 40.99 - $ 40.99
$ 40.99
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 %
$ 49.49
$ 49.49 - $ 49.49
$ 49.49
$ 39.59
$ 39.59 - $ 39.59
$ 39.59

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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$ 49.49
$ 49.49 - $ 49.49
$ 49.49
$ 39.59
$ 39.59 - $ 39.59
$ 39.59
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 %
$ 51.69
$ 51.69 - $ 51.69
$ 51.69
$ 41.29
$ 41.29 - $ 41.29
$ 41.29

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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$ 51.69
$ 51.69 - $ 51.69
$ 51.69
$ 41.29
$ 41.29 - $ 41.29
$ 41.29
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 %
$ 49.89
$ 49.89 - $ 49.89
$ 49.89
$ 39.89
$ 39.89 - $ 39.89
$ 39.89

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...

View full details
$ 49.89
$ 49.89 - $ 49.89
$ 49.89
$ 39.89
$ 39.89 - $ 39.89
$ 39.89
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 %
$ 50.09
$ 50.09 - $ 50.09
$ 50.09
$ 40.09
$ 40.09 - $ 40.09
$ 40.09

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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$ 50.09
$ 50.09 - $ 50.09
$ 50.09
$ 40.09
$ 40.09 - $ 40.09
$ 40.09
Save 20% Save %

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