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Breco 4 Series Couplers

The Breco 4 Series is the 3/8" body industrial interchange, a common air coupler size for shop and industrial systems. This collection includes Breco 4 Series couplers and plugs in brass, steel, and brass with steel sleeve, with NPT, hose barb, and push-on terminations. Filter by thread, material, and coupler or plug to find your part.

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Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass Save 20% Save %
$ 19.69
$ 19.69 - $ 19.69
$ 19.69
$ 15.79
$ 15.79 - $ 15.79
$ 15.79

Breco B-3CM3-S, 3/8" Industrial Coupler x 3/8" Male NPT, 4 Series, Sleeve Guard, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-3CM3-S is a Steel 3/8" industrial coupler from the Breco 4 Series — a hig...

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$ 19.69
$ 19.69 - $ 19.69
$ 19.69
$ 15.79
$ 15.79 - $ 15.79
$ 15.79
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass Save 20% Save %
$ 30.79
$ 30.79 - $ 30.79
$ 30.79
$ 24.59
$ 24.59 - $ 24.59
$ 24.59

Breco B-3CM4-S, 3/8" Industrial Coupler x 1/2" Male NPT, 4 Series, Sleeve Guard, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-3CM4-S is a Steel 3/8" industrial coupler from the Breco 4 Series — a hig...

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$ 30.79
$ 30.79 - $ 30.79
$ 30.79
$ 24.59
$ 24.59 - $ 24.59
$ 24.59
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass Save 20% Save %
$ 35.39
$ 35.39 - $ 35.39
$ 35.39
$ 28.29
$ 28.29 - $ 28.29
$ 28.29

Breco B-3CPS3-S, 3/8" Industrial Coupler x 3/8" Push-On Hose Stem, 4 Series, Sleeve Guard, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-3CPS3-S is a Steel 3/8" industrial coupler from the Breco 4 Series — a hi...

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$ 35.39
$ 35.39 - $ 35.39
$ 35.39
$ 28.29
$ 28.29 - $ 28.29
$ 28.29
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass Save 20% Save %
$ 22.69
$ 22.69 - $ 22.69
$ 22.69
$ 18.09
$ 18.09 - $ 18.09
$ 18.09

Breco B-3CS3-S, 3/8" Industrial Coupler x 3/8" Hose ID, 4 Series, Sleeve Guard, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-3CS3-S is a Steel 3/8" industrial coupler from the Breco 4 Series — a hig...

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$ 22.69
$ 22.69 - $ 22.69
$ 22.69
$ 18.09
$ 18.09 - $ 18.09
$ 18.09
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 5.49
$ 5.49 - $ 5.49
$ 5.49
$ 4.39
$ 4.39 - $ 4.39
$ 4.39

Breco B-B3F2-S, 3/8" Industrial Plug x 1/4" Female NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3F2-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

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$ 5.49
$ 5.49 - $ 5.49
$ 5.49
$ 4.39
$ 4.39 - $ 4.39
$ 4.39
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Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 19.89
$ 19.89 - $ 19.89
$ 19.89
$ 15.89
$ 15.89 - $ 15.89
$ 15.89

Breco B-B3F3-B, 3/8" Industrial Plug x 3/8" Female NPT, 4 Series, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3F3-B is a Brass 3/8" industrial plug from the Breco 4 Series — a high-f...

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$ 19.89
$ 19.89 - $ 19.89
$ 19.89
$ 15.89
$ 15.89 - $ 15.89
$ 15.89
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 6.59
$ 6.59 - $ 6.59
$ 6.59
$ 5.29
$ 5.29 - $ 5.29
$ 5.29

Breco B-B3F3-S, 3/8" Industrial Plug x 3/8" Female NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3F3-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

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$ 6.59
$ 6.59 - $ 6.59
$ 6.59
$ 5.29
$ 5.29 - $ 5.29
$ 5.29
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 39.49
$ 39.49 - $ 39.49
$ 39.49
$ 31.59
$ 31.59 - $ 31.59
$ 31.59

Breco B-B3F4-S, 3/8" Industrial Plug x 1/2" Female NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3F4-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

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$ 39.49
$ 39.49 - $ 39.49
$ 39.49
$ 31.59
$ 31.59 - $ 31.59
$ 31.59
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 21% Save %
$ 7.29
$ 7.29 - $ 7.29
$ 7.29
$ 5.79
$ 5.79 - $ 5.79
$ 5.79

Breco B-B3M2-S, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3M2-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

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$ 7.29
$ 7.29 - $ 7.29
$ 7.29
$ 5.79
$ 5.79 - $ 5.79
$ 5.79
Save 21% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 8.39
$ 8.39 - $ 8.39
$ 8.39
$ 6.69
$ 6.69 - $ 6.69
$ 6.69

Breco B-B3M3-B, 3/8" Industrial Plug x 3/8" Male NPT, 4 Series, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3M3-B is a Brass 3/8" industrial plug from the Breco 4 Series — a high-f...

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$ 8.39
$ 8.39 - $ 8.39
$ 8.39
$ 6.69
$ 6.69 - $ 6.69
$ 6.69
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 19% Save %
$ 7.79
$ 7.79 - $ 7.79
$ 7.79
$ 6.29
$ 6.29 - $ 6.29
$ 6.29

Breco B-B3M3-S, 3/8" Industrial Plug x 3/8" Male NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3M3-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

View full details
$ 7.79
$ 7.79 - $ 7.79
$ 7.79
$ 6.29
$ 6.29 - $ 6.29
$ 6.29
Save 19% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 7.09
$ 7.09 - $ 7.09
$ 7.09
$ 5.69
$ 5.69 - $ 5.69
$ 5.69

Breco B-B3M4-S, 3/8" Industrial Plug x 1/2" Male NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3M4-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

View full details
$ 7.09
$ 7.09 - $ 7.09
$ 7.09
$ 5.69
$ 5.69 - $ 5.69
$ 5.69
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 6.39
$ 6.39 - $ 6.39
$ 6.39
$ 5.09
$ 5.09 - $ 5.09
$ 5.09

Breco B-B3PS3-S, 3/8" Industrial Plug x 3/8" Push-On Hose Stem, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3PS3-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-...

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$ 6.39
$ 6.39 - $ 6.39
$ 6.39
$ 5.09
$ 5.09 - $ 5.09
$ 5.09
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 9.59
$ 9.59 - $ 9.59
$ 9.59
$ 7.69
$ 7.69 - $ 7.69
$ 7.69

Breco B-B3S2-S, 3/8" Industrial Plug x 1/4" Hose ID, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3S2-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

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$ 9.59
$ 9.59 - $ 9.59
$ 9.59
$ 7.69
$ 7.69 - $ 7.69
$ 7.69
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 6.39
$ 6.39 - $ 6.39
$ 6.39
$ 5.09
$ 5.09 - $ 5.09
$ 5.09

Breco B-B3S3-S, 3/8" Industrial Plug x 3/8" Hose ID, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3S3-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

View full details
$ 6.39
$ 6.39 - $ 6.39
$ 6.39
$ 5.09
$ 5.09 - $ 5.09
$ 5.09
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 7.09
$ 7.09 - $ 7.09
$ 7.09
$ 5.69
$ 5.69 - $ 5.69
$ 5.69

Breco B-B3S4-S, 3/8" Industrial Plug x 1/2" Hose ID, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco B-B3S4-S is a Steel 3/8" industrial plug from the Breco 4 Series — a high-f...

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$ 7.09
$ 7.09 - $ 7.09
$ 7.09
$ 5.69
$ 5.69 - $ 5.69
$ 5.69
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 21.89
$ 21.89 - $ 21.89
$ 21.89
$ 17.59
$ 17.59 - $ 17.59
$ 17.59

Breco D440, 3/8" Industrial Coupler x 1/4" Female NPT, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco D440 is a Brass/Steel 3/8" industrial coupler from the Breco 4 Series — a h...

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$ 21.89
$ 21.89 - $ 21.89
$ 21.89
$ 17.59
$ 17.59 - $ 17.59
$ 17.59
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 26.29
$ 26.29 - $ 26.29
$ 26.29
$ 21.09
$ 21.09 - $ 21.09
$ 21.09

Breco D440BL, 3/8" Industrial Coupler x 1/4" Female NPT, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco D440BL is a Brass/Steel 3/8" industrial coupler from the Breco 4 Series — a...

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$ 26.29
$ 26.29 - $ 26.29
$ 26.29
$ 21.09
$ 21.09 - $ 21.09
$ 21.09
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 25.39
$ 25.39 - $ 25.39
$ 25.39
$ 20.29
$ 20.29 - $ 20.29
$ 20.29

Breco D442, 3/8" Industrial Coupler x 1/4" Hose ID, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco D442 is a Brass/Steel 3/8" industrial coupler from the Breco 4 Series — a h...

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$ 25.39
$ 25.39 - $ 25.39
$ 25.39
$ 20.29
$ 20.29 - $ 20.29
$ 20.29
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 29.89
$ 29.89 - $ 29.89
$ 29.89
$ 23.89
$ 23.89 - $ 23.89
$ 23.89

Breco D442BL, 3/8" Industrial Coupler x 1/4" Hose ID, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco D442BL is a Brass/Steel 3/8" industrial coupler from the Breco 4 Series — a...

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$ 29.89
$ 29.89 - $ 29.89
$ 29.89
$ 23.89
$ 23.89 - $ 23.89
$ 23.89
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 26.39
$ 26.39 - $ 26.39
$ 26.39
$ 21.19
$ 21.19 - $ 21.19
$ 21.19

Breco D452, 3/8" Industrial Coupler x 5/16" Hose ID, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco D452 is a Brass/Steel 3/8" industrial coupler from the Breco 4 Series — a h...

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$ 26.39
$ 26.39 - $ 26.39
$ 26.39
$ 21.19
$ 21.19 - $ 21.19
$ 21.19
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 30.29
$ 30.29 - $ 30.29
$ 30.29
$ 24.19
$ 24.19 - $ 24.19
$ 24.19

Breco D452BL, 3/8" Industrial Coupler x 5/16" Hose ID, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco D452BL is a Brass/Steel 3/8" industrial coupler from the Breco 4 Series — a...

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$ 30.29
$ 30.29 - $ 30.29
$ 30.29
$ 24.19
$ 24.19 - $ 24.19
$ 24.19
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 22.69
$ 22.69 - $ 22.69
$ 22.69
$ 18.09
$ 18.09 - $ 18.09
$ 18.09

Breco D460, 3/8" Industrial Coupler x 3/8" Female NPT, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco D460 is a Brass/Steel 3/8" industrial coupler from the Breco 4 Series — a h...

View full details
$ 22.69
$ 22.69 - $ 22.69
$ 22.69
$ 18.09
$ 18.09 - $ 18.09
$ 18.09
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 27.09
$ 27.09 - $ 27.09
$ 27.09
$ 21.69
$ 21.69 - $ 21.69
$ 21.69

Breco D460BL, 3/8" Industrial Coupler x 3/8" Female NPT, 4 Series, Ball Lock, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Breco D460BL is a Brass/Steel 3/8" industrial coupler from the Breco 4 Series — a...

View full details
$ 27.09
$ 27.09 - $ 27.09
$ 27.09
$ 21.69
$ 21.69 - $ 21.69
$ 21.69
Save 20% Save %

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