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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 %
$ 340.00
$ 340.00 - $ 340.00
$ 340.00
$ 272.00
$ 272.00 - $ 272.00
$ 272.00

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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$ 340.00
$ 340.00 - $ 340.00
$ 340.00
$ 272.00
$ 272.00 - $ 272.00
$ 272.00
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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 %
$ 531.00
$ 531.00 - $ 531.00
$ 531.00
$ 424.00
$ 424.00 - $ 424.00
$ 424.00

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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$ 531.00
$ 531.00 - $ 531.00
$ 531.00
$ 424.00
$ 424.00 - $ 424.00
$ 424.00
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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 %
$ 610.00
$ 610.00 - $ 610.00
$ 610.00
$ 488.00
$ 488.00 - $ 488.00
$ 488.00

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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$ 610.00
$ 610.00 - $ 610.00
$ 610.00
$ 488.00
$ 488.00 - $ 488.00
$ 488.00
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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 %
$ 391.00
$ 391.00 - $ 391.00
$ 391.00
$ 312.00
$ 312.00 - $ 312.00
$ 312.00

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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$ 391.00
$ 391.00 - $ 391.00
$ 391.00
$ 312.00
$ 312.00 - $ 312.00
$ 312.00
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Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
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$ 95.00
$ 95.00 - $ 95.00
$ 95.00
$ 76.00
$ 76.00 - $ 76.00
$ 76.00

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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$ 95.00
$ 95.00 - $ 95.00
$ 95.00
$ 76.00
$ 76.00 - $ 76.00
$ 76.00
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Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
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$ 343.00
$ 343.00 - $ 343.00
$ 343.00
$ 274.00
$ 274.00 - $ 274.00
$ 274.00

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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$ 343.00
$ 343.00 - $ 343.00
$ 343.00
$ 274.00
$ 274.00 - $ 274.00
$ 274.00
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Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 19% Save %
$ 114.00
$ 114.00 - $ 114.00
$ 114.00
$ 92.00
$ 92.00 - $ 92.00
$ 92.00

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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$ 114.00
$ 114.00 - $ 114.00
$ 114.00
$ 92.00
$ 92.00 - $ 92.00
$ 92.00
Save 19% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
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$ 680.00
$ 680.00 - $ 680.00
$ 680.00
$ 544.00
$ 544.00 - $ 544.00
$ 544.00

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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$ 680.00
$ 680.00 - $ 680.00
$ 680.00
$ 544.00
$ 544.00 - $ 544.00
$ 544.00
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Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 21% Save %
$ 126.00
$ 126.00 - $ 126.00
$ 126.00
$ 100.00
$ 100.00 - $ 100.00
$ 100.00

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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$ 126.00
$ 126.00 - $ 126.00
$ 126.00
$ 100.00
$ 100.00 - $ 100.00
$ 100.00
Save 21% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
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$ 145.00
$ 145.00 - $ 145.00
$ 145.00
$ 116.00
$ 116.00 - $ 116.00
$ 116.00

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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$ 145.00
$ 145.00 - $ 145.00
$ 145.00
$ 116.00
$ 116.00 - $ 116.00
$ 116.00
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Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 19% Save %
$ 135.00
$ 135.00 - $ 135.00
$ 135.00
$ 109.00
$ 109.00 - $ 109.00
$ 109.00

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
$ 135.00
$ 135.00 - $ 135.00
$ 135.00
$ 109.00
$ 109.00 - $ 109.00
$ 109.00
Save 19% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 123.00
$ 123.00 - $ 123.00
$ 123.00
$ 98.00
$ 98.00 - $ 98.00
$ 98.00

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...

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$ 123.00
$ 123.00 - $ 123.00
$ 123.00
$ 98.00
$ 98.00 - $ 98.00
$ 98.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 21% Save %
$ 111.00
$ 111.00 - $ 111.00
$ 111.00
$ 88.00
$ 88.00 - $ 88.00
$ 88.00

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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$ 111.00
$ 111.00 - $ 111.00
$ 111.00
$ 88.00
$ 88.00 - $ 88.00
$ 88.00
Save 21% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 166.00
$ 166.00 - $ 166.00
$ 166.00
$ 133.00
$ 133.00 - $ 133.00
$ 133.00

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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$ 166.00
$ 166.00 - $ 166.00
$ 166.00
$ 133.00
$ 133.00 - $ 133.00
$ 133.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 21% Save %
$ 111.00
$ 111.00 - $ 111.00
$ 111.00
$ 88.00
$ 88.00 - $ 88.00
$ 88.00

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...

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$ 111.00
$ 111.00 - $ 111.00
$ 111.00
$ 88.00
$ 88.00 - $ 88.00
$ 88.00
Save 21% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 123.00
$ 123.00 - $ 123.00
$ 123.00
$ 98.00
$ 98.00 - $ 98.00
$ 98.00

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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$ 123.00
$ 123.00 - $ 123.00
$ 123.00
$ 98.00
$ 98.00 - $ 98.00
$ 98.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 377.00
$ 377.00 - $ 377.00
$ 377.00
$ 303.00
$ 303.00 - $ 303.00
$ 303.00

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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$ 377.00
$ 377.00 - $ 377.00
$ 377.00
$ 303.00
$ 303.00 - $ 303.00
$ 303.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
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$ 453.00
$ 453.00 - $ 453.00
$ 453.00
$ 364.00
$ 364.00 - $ 364.00
$ 364.00

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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$ 453.00
$ 453.00 - $ 453.00
$ 453.00
$ 364.00
$ 364.00 - $ 364.00
$ 364.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 438.00
$ 438.00 - $ 438.00
$ 438.00
$ 350.00
$ 350.00 - $ 350.00
$ 350.00

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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$ 438.00
$ 438.00 - $ 438.00
$ 438.00
$ 350.00
$ 350.00 - $ 350.00
$ 350.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 515.00
$ 515.00 - $ 515.00
$ 515.00
$ 412.00
$ 412.00 - $ 412.00
$ 412.00

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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$ 515.00
$ 515.00 - $ 515.00
$ 515.00
$ 412.00
$ 412.00 - $ 412.00
$ 412.00
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Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
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$ 455.00
$ 455.00 - $ 455.00
$ 455.00
$ 365.00
$ 365.00 - $ 365.00
$ 365.00

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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$ 455.00
$ 455.00 - $ 455.00
$ 455.00
$ 365.00
$ 365.00 - $ 365.00
$ 365.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 522.00
$ 522.00 - $ 522.00
$ 522.00
$ 417.00
$ 417.00 - $ 417.00
$ 417.00

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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$ 522.00
$ 522.00 - $ 522.00
$ 522.00
$ 417.00
$ 417.00 - $ 417.00
$ 417.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 391.00
$ 391.00 - $ 391.00
$ 391.00
$ 312.00
$ 312.00 - $ 312.00
$ 312.00

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...

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$ 391.00
$ 391.00 - $ 391.00
$ 391.00
$ 312.00
$ 312.00 - $ 312.00
$ 312.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
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$ 467.00
$ 467.00 - $ 467.00
$ 467.00
$ 374.00
$ 374.00 - $ 374.00
$ 374.00

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...

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$ 467.00
$ 467.00 - $ 467.00
$ 467.00
$ 374.00
$ 374.00 - $ 374.00
$ 374.00
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