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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 %
$ 348.00
$ 348.00 - $ 348.00
$ 348.00
$ 279.00
$ 279.00 - $ 279.00
$ 279.00

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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$ 348.00
$ 348.00 - $ 348.00
$ 348.00
$ 279.00
$ 279.00 - $ 279.00
$ 279.00
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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 %
$ 544.00
$ 544.00 - $ 544.00
$ 544.00
$ 435.00
$ 435.00 - $ 435.00
$ 435.00

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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$ 544.00
$ 544.00 - $ 544.00
$ 544.00
$ 435.00
$ 435.00 - $ 435.00
$ 435.00
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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 %
$ 626.00
$ 626.00 - $ 626.00
$ 626.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00

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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$ 626.00
$ 626.00 - $ 626.00
$ 626.00
$ 500.00
$ 500.00 - $ 500.00
$ 500.00
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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 %
$ 401.00
$ 401.00 - $ 401.00
$ 401.00
$ 320.00
$ 320.00 - $ 320.00
$ 320.00

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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$ 401.00
$ 401.00 - $ 401.00
$ 401.00
$ 320.00
$ 320.00 - $ 320.00
$ 320.00
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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$ 97.00
$ 97.00 - $ 97.00
$ 97.00
$ 78.00
$ 78.00 - $ 78.00
$ 78.00

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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$ 97.00
$ 97.00 - $ 97.00
$ 97.00
$ 78.00
$ 78.00 - $ 78.00
$ 78.00
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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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$ 352.00
$ 352.00 - $ 352.00
$ 352.00
$ 281.00
$ 281.00 - $ 281.00
$ 281.00

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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$ 352.00
$ 352.00 - $ 352.00
$ 352.00
$ 281.00
$ 281.00 - $ 281.00
$ 281.00
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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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$ 117.00
$ 117.00 - $ 117.00
$ 117.00
$ 94.00
$ 94.00 - $ 94.00
$ 94.00

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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$ 117.00
$ 117.00 - $ 117.00
$ 117.00
$ 94.00
$ 94.00 - $ 94.00
$ 94.00
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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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$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00

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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$ 698.00
$ 698.00 - $ 698.00
$ 698.00
$ 558.00
$ 558.00 - $ 558.00
$ 558.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 129.00
$ 129.00 - $ 129.00
$ 129.00
$ 103.00
$ 103.00 - $ 103.00
$ 103.00

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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$ 129.00
$ 129.00 - $ 129.00
$ 129.00
$ 103.00
$ 103.00 - $ 103.00
$ 103.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 149.00
$ 149.00 - $ 149.00
$ 149.00
$ 119.00
$ 119.00 - $ 119.00
$ 119.00

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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$ 149.00
$ 149.00 - $ 149.00
$ 149.00
$ 119.00
$ 119.00 - $ 119.00
$ 119.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 19% Save %
$ 138.00
$ 138.00 - $ 138.00
$ 138.00
$ 112.00
$ 112.00 - $ 112.00
$ 112.00

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...

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$ 138.00
$ 138.00 - $ 138.00
$ 138.00
$ 112.00
$ 112.00 - $ 112.00
$ 112.00
Save 19% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 126.00
$ 126.00 - $ 126.00
$ 126.00
$ 101.00
$ 101.00 - $ 101.00
$ 101.00

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...

View full details
$ 126.00
$ 126.00 - $ 126.00
$ 126.00
$ 101.00
$ 101.00 - $ 101.00
$ 101.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 113.00
$ 113.00 - $ 113.00
$ 113.00
$ 90.00
$ 90.00 - $ 90.00
$ 90.00

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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$ 113.00
$ 113.00 - $ 113.00
$ 113.00
$ 90.00
$ 90.00 - $ 90.00
$ 90.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 170.00
$ 170.00 - $ 170.00
$ 170.00
$ 136.00
$ 136.00 - $ 136.00
$ 136.00

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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$ 170.00
$ 170.00 - $ 170.00
$ 170.00
$ 136.00
$ 136.00 - $ 136.00
$ 136.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 113.00
$ 113.00 - $ 113.00
$ 113.00
$ 90.00
$ 90.00 - $ 90.00
$ 90.00

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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$ 113.00
$ 113.00 - $ 113.00
$ 113.00
$ 90.00
$ 90.00 - $ 90.00
$ 90.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 126.00
$ 126.00 - $ 126.00
$ 126.00
$ 101.00
$ 101.00 - $ 101.00
$ 101.00

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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$ 126.00
$ 126.00 - $ 126.00
$ 126.00
$ 101.00
$ 101.00 - $ 101.00
$ 101.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 387.00
$ 387.00 - $ 387.00
$ 387.00
$ 311.00
$ 311.00 - $ 311.00
$ 311.00

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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$ 387.00
$ 387.00 - $ 387.00
$ 387.00
$ 311.00
$ 311.00 - $ 311.00
$ 311.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 465.00
$ 465.00 - $ 465.00
$ 465.00
$ 373.00
$ 373.00 - $ 373.00
$ 373.00

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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$ 465.00
$ 465.00 - $ 465.00
$ 465.00
$ 373.00
$ 373.00 - $ 373.00
$ 373.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 449.00
$ 449.00 - $ 449.00
$ 449.00
$ 359.00
$ 359.00 - $ 359.00
$ 359.00

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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$ 449.00
$ 449.00 - $ 449.00
$ 449.00
$ 359.00
$ 359.00 - $ 359.00
$ 359.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 528.00
$ 528.00 - $ 528.00
$ 528.00
$ 422.00
$ 422.00 - $ 422.00
$ 422.00

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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$ 528.00
$ 528.00 - $ 528.00
$ 528.00
$ 422.00
$ 422.00 - $ 422.00
$ 422.00
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
$ 375.00
$ 375.00 - $ 375.00
$ 375.00

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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$ 467.00
$ 467.00 - $ 467.00
$ 467.00
$ 375.00
$ 375.00 - $ 375.00
$ 375.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 535.00
$ 535.00 - $ 535.00
$ 535.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00

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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$ 535.00
$ 535.00 - $ 535.00
$ 535.00
$ 428.00
$ 428.00 - $ 428.00
$ 428.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 401.00
$ 401.00 - $ 401.00
$ 401.00
$ 320.00
$ 320.00 - $ 320.00
$ 320.00

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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$ 401.00
$ 401.00 - $ 401.00
$ 401.00
$ 320.00
$ 320.00 - $ 320.00
$ 320.00
Save 20% Save %
Breco 2DSF2-B, 1/4" ISO-B Hydraulic Coupler x 1/4" Female NPT, ISO-B Series, Brass
Save 20% Save %
$ 479.00
$ 479.00 - $ 479.00
$ 479.00
$ 384.00
$ 384.00 - $ 384.00
$ 384.00

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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$ 479.00
$ 479.00 - $ 479.00
$ 479.00
$ 384.00
$ 384.00 - $ 384.00
$ 384.00
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