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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Original price $ 344.00Original price $ 344.00 - Original price $ 344.00Original price $ 344.00Current price $ 276.00$ 276.00 - $ 276.00Current price $ 276.00
Breco B-3CM3-S, 3/8" Industrial Coupler x 3/8" Male NPT, 4 Series, Sleeve Guard, Steel
In stockReliable, 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...
View full detailsOriginal price $ 344.00Original price $ 344.00 - Original price $ 344.00Original price $ 344.00Current price $ 276.00$ 276.00 - $ 276.00Current price $ 276.00Save 20% -
Original price $ 538.00Original price $ 538.00 - Original price $ 538.00Original price $ 538.00Current price $ 430.00$ 430.00 - $ 430.00Current price $ 430.00
Breco B-3CM4-S, 3/8" Industrial Coupler x 1/2" Male NPT, 4 Series, Sleeve Guard, Steel
In stockReliable, 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...
View full detailsOriginal price $ 538.00Original price $ 538.00 - Original price $ 538.00Original price $ 538.00Current price $ 430.00$ 430.00 - $ 430.00Current price $ 430.00Save 20% -
Original price $ 618.00Original price $ 618.00 - Original price $ 618.00Original price $ 618.00Current price $ 495.00$ 495.00 - $ 495.00Current price $ 495.00
Breco B-3CPS3-S, 3/8" Industrial Coupler x 3/8" Push-On Hose Stem, 4 Series, Sleeve Guard, Steel
In stockReliable, 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...
View full detailsOriginal price $ 618.00Original price $ 618.00 - Original price $ 618.00Original price $ 618.00Current price $ 495.00$ 495.00 - $ 495.00Current price $ 495.00Save 20% -
Original price $ 397.00Original price $ 397.00 - Original price $ 397.00Original price $ 397.00Current price $ 316.00$ 316.00 - $ 316.00Current price $ 316.00
Breco B-3CS3-S, 3/8" Industrial Coupler x 3/8" Hose ID, 4 Series, Sleeve Guard, Steel
In stockReliable, 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...
View full detailsOriginal price $ 397.00Original price $ 397.00 - Original price $ 397.00Original price $ 397.00Current price $ 316.00$ 316.00 - $ 316.00Current price $ 316.00Save 20% -
Original price $ 96.00Original price $ 96.00 - Original price $ 96.00Original price $ 96.00Current price $ 77.00$ 77.00 - $ 77.00Current price $ 77.00
Breco B-B3F2-S, 3/8" Industrial Plug x 1/4" Female NPT, 4 Series, Steel
In stockReliable, 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...
View full detailsOriginal price $ 96.00Original price $ 96.00 - Original price $ 96.00Original price $ 96.00Current price $ 77.00$ 77.00 - $ 77.00Current price $ 77.00Save 20% -
Original price $ 348.00Original price $ 348.00 - Original price $ 348.00Original price $ 348.00Current price $ 278.00$ 278.00 - $ 278.00Current price $ 278.00
Breco B-B3F3-B, 3/8" Industrial Plug x 3/8" Female NPT, 4 Series, Brass
In stockReliable, 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...
View full detailsOriginal price $ 348.00Original price $ 348.00 - Original price $ 348.00Original price $ 348.00Current price $ 278.00$ 278.00 - $ 278.00Current price $ 278.00Save 20% -
Original price $ 116.00Original price $ 116.00 - Original price $ 116.00Original price $ 116.00Current price $ 93.00$ 93.00 - $ 93.00Current price $ 93.00
Breco B-B3F3-S, 3/8" Industrial Plug x 3/8" Female NPT, 4 Series, Steel
In stockReliable, 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...
View full detailsOriginal price $ 116.00Original price $ 116.00 - Original price $ 116.00Original price $ 116.00Current price $ 93.00$ 93.00 - $ 93.00Current price $ 93.00Save 20% -
Original price $ 690.00Original price $ 690.00 - Original price $ 690.00Original price $ 690.00Current price $ 552.00$ 552.00 - $ 552.00Current price $ 552.00
Breco B-B3F4-S, 3/8" Industrial Plug x 1/2" Female NPT, 4 Series, Steel
In stockReliable, 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...
View full detailsOriginal price $ 690.00Original price $ 690.00 - Original price $ 690.00Original price $ 690.00Current price $ 552.00$ 552.00 - $ 552.00Current price $ 552.00Save 20% -
Original price $ 128.00Original price $ 128.00 - Original price $ 128.00Original price $ 128.00Current price $ 102.00$ 102.00 - $ 102.00Current price $ 102.00
Breco B-B3M2-S, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, Steel
In stockReliable, 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...
View full detailsOriginal price $ 128.00Original price $ 128.00 - Original price $ 128.00Original price $ 128.00Current price $ 102.00$ 102.00 - $ 102.00Current price $ 102.00Save 20% -
Original price $ 147.00Original price $ 147.00 - Original price $ 147.00Original price $ 147.00Current price $ 117.00$ 117.00 - $ 117.00Current price $ 117.00
Breco B-B3M3-B, 3/8" Industrial Plug x 3/8" Male NPT, 4 Series, Brass
In stockReliable, 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...
View full detailsOriginal price $ 147.00Original price $ 147.00 - Original price $ 147.00Original price $ 147.00Current price $ 117.00$ 117.00 - $ 117.00Current price $ 117.00Save 20% -
Original price $ 137.00Original price $ 137.00 - Original price $ 137.00Original price $ 137.00Current price $ 110.00$ 110.00 - $ 110.00Current price $ 110.00
Breco B-B3M3-S, 3/8" Industrial Plug x 3/8" Male NPT, 4 Series, Steel
In stockReliable, 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 detailsOriginal price $ 137.00Original price $ 137.00 - Original price $ 137.00Original price $ 137.00Current price $ 110.00$ 110.00 - $ 110.00Current price $ 110.00Save 20% -
Original price $ 124.00Original price $ 124.00 - Original price $ 124.00Original price $ 124.00Current price $ 100.00$ 100.00 - $ 100.00Current price $ 100.00
Breco B-B3M4-S, 3/8" Industrial Plug x 1/2" Male NPT, 4 Series, Steel
In stockReliable, 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 detailsOriginal price $ 124.00Original price $ 124.00 - Original price $ 124.00Original price $ 124.00Current price $ 100.00$ 100.00 - $ 100.00Current price $ 100.00Save 19% -
Original price $ 112.00Original price $ 112.00 - Original price $ 112.00Original price $ 112.00Current price $ 89.00$ 89.00 - $ 89.00Current price $ 89.00
Breco B-B3PS3-S, 3/8" Industrial Plug x 3/8" Push-On Hose Stem, 4 Series, Steel
In stockReliable, 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-...
View full detailsOriginal price $ 112.00Original price $ 112.00 - Original price $ 112.00Original price $ 112.00Current price $ 89.00$ 89.00 - $ 89.00Current price $ 89.00Save 21% -
Original price $ 168.00Original price $ 168.00 - Original price $ 168.00Original price $ 168.00Current price $ 135.00$ 135.00 - $ 135.00Current price $ 135.00
Breco B-B3S2-S, 3/8" Industrial Plug x 1/4" Hose ID, 4 Series, Steel
In stockReliable, 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...
View full detailsOriginal price $ 168.00Original price $ 168.00 - Original price $ 168.00Original price $ 168.00Current price $ 135.00$ 135.00 - $ 135.00Current price $ 135.00Save 20% -
Original price $ 112.00Original price $ 112.00 - Original price $ 112.00Original price $ 112.00Current price $ 89.00$ 89.00 - $ 89.00Current price $ 89.00
Breco B-B3S3-S, 3/8" Industrial Plug x 3/8" Hose ID, 4 Series, Steel
In stockReliable, 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 detailsOriginal price $ 112.00Original price $ 112.00 - Original price $ 112.00Original price $ 112.00Current price $ 89.00$ 89.00 - $ 89.00Current price $ 89.00Save 21% -
Original price $ 124.00Original price $ 124.00 - Original price $ 124.00Original price $ 124.00Current price $ 100.00$ 100.00 - $ 100.00Current price $ 100.00
Breco B-B3S4-S, 3/8" Industrial Plug x 1/2" Hose ID, 4 Series, Steel
In stockReliable, 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...
View full detailsOriginal price $ 124.00Original price $ 124.00 - Original price $ 124.00Original price $ 124.00Current price $ 100.00$ 100.00 - $ 100.00Current price $ 100.00Save 19% -
Original price $ 383.00Original price $ 383.00 - Original price $ 383.00Original price $ 383.00Current price $ 308.00$ 308.00 - $ 308.00Current price $ 308.00
Breco D440, 3/8" Industrial Coupler x 1/4" Female NPT, 4 Series, Brass/Steel
In stockReliable, 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...
View full detailsOriginal price $ 383.00Original price $ 383.00 - Original price $ 383.00Original price $ 383.00Current price $ 308.00$ 308.00 - $ 308.00Current price $ 308.00Save 20% -
Original price $ 460.00Original price $ 460.00 - Original price $ 460.00Original price $ 460.00Current price $ 369.00$ 369.00 - $ 369.00Current price $ 369.00
Breco D440BL, 3/8" Industrial Coupler x 1/4" Female NPT, 4 Series, Ball Lock, Brass/Steel
In stockReliable, 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...
View full detailsOriginal price $ 460.00Original price $ 460.00 - Original price $ 460.00Original price $ 460.00Current price $ 369.00$ 369.00 - $ 369.00Current price $ 369.00Save 20% -
Original price $ 444.00Original price $ 444.00 - Original price $ 444.00Original price $ 444.00Current price $ 355.00$ 355.00 - $ 355.00Current price $ 355.00
Breco D442, 3/8" Industrial Coupler x 1/4" Hose ID, 4 Series, Brass/Steel
In stockReliable, 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...
View full detailsOriginal price $ 444.00Original price $ 444.00 - Original price $ 444.00Original price $ 444.00Current price $ 355.00$ 355.00 - $ 355.00Current price $ 355.00Save 20% -
Original price $ 522.00Original price $ 522.00 - Original price $ 522.00Original price $ 522.00Current price $ 418.00$ 418.00 - $ 418.00Current price $ 418.00
Breco D442BL, 3/8" Industrial Coupler x 1/4" Hose ID, 4 Series, Ball Lock, Brass/Steel
In stockReliable, 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...
View full detailsOriginal price $ 522.00Original price $ 522.00 - Original price $ 522.00Original price $ 522.00Current price $ 418.00$ 418.00 - $ 418.00Current price $ 418.00Save 20% -
Original price $ 461.00Original price $ 461.00 - Original price $ 461.00Original price $ 461.00Current price $ 371.00$ 371.00 - $ 371.00Current price $ 371.00
Breco D452, 3/8" Industrial Coupler x 5/16" Hose ID, 4 Series, Brass/Steel
In stockReliable, 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...
View full detailsOriginal price $ 461.00Original price $ 461.00 - Original price $ 461.00Original price $ 461.00Current price $ 371.00$ 371.00 - $ 371.00Current price $ 371.00Save 20% -
Original price $ 529.00Original price $ 529.00 - Original price $ 529.00Original price $ 529.00Current price $ 423.00$ 423.00 - $ 423.00Current price $ 423.00
Breco D452BL, 3/8" Industrial Coupler x 5/16" Hose ID, 4 Series, Ball Lock, Brass/Steel
In stockReliable, 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...
View full detailsOriginal price $ 529.00Original price $ 529.00 - Original price $ 529.00Original price $ 529.00Current price $ 423.00$ 423.00 - $ 423.00Current price $ 423.00Save 20% -
Original price $ 397.00Original price $ 397.00 - Original price $ 397.00Original price $ 397.00Current price $ 316.00$ 316.00 - $ 316.00Current price $ 316.00
Breco D460, 3/8" Industrial Coupler x 3/8" Female NPT, 4 Series, Brass/Steel
In stockReliable, 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 detailsOriginal price $ 397.00Original price $ 397.00 - Original price $ 397.00Original price $ 397.00Current price $ 316.00$ 316.00 - $ 316.00Current price $ 316.00Save 20% -
Original price $ 474.00Original price $ 474.00 - Original price $ 474.00Original price $ 474.00Current price $ 379.00$ 379.00 - $ 379.00Current price $ 379.00
Breco D460BL, 3/8" Industrial Coupler x 3/8" Female NPT, 4 Series, Ball Lock, Brass/Steel
In stockReliable, 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 detailsOriginal price $ 474.00Original price $ 474.00 - Original price $ 474.00Original price $ 474.00Current price $ 379.00$ 379.00 - $ 379.00Current price $ 379.00Save 20%
