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POWERTEC 70190 4-Inch by 2-1/2-Inch Y-Fitting Dust Collection Hose Connector

  • Based on 792 reviews
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Availability: In Stock.
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Arrives Sep 16 – Sep 17
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Size: 4 x 2-1/2"


Style: 4 x 2-1/2" Y-Fitting


Features

  • INCLUDES: 4 to 2-1/2 Dust Collection Hose Y-Fitting Connector
  • FUNCTION: Connects Two 4 nominal ID dust hoses to split to one 2-1/2 nominal ID machine or dust hose.
  • FEATURES: Fits inside dust collection hoses and secures with band clamps, easy-to-use and versatile design that accommodates a variety of dust collection systems and woodworking power tools with 4 and 2-1/2 ID ports.
  • BUILD: Fittings is constructed out of rugged ABS plastic for abrasion resistance, toughness and long-term durability
  • DIMENSIONS: Two 4-Inch nominal end measure 3-15/16 inch OD and 3-45/64 inch ID, 2-1/2 nominal end measure 2-15/32 inch OD and 2-5/16 inch ID | Material Thickness: 1/8 inch

Description

Introducing the 4-Inch by 2-1/2-Inch Y-Fitting Dust Collection Hose Connector by POWERTEC.This conveniently designed y connector is a handy dust collector accessory intended to help expand your dust collection system hoses and its applications. This fitting is commonly used in place of “T” fittings, providing a smoother transition to branched off main lines where design limitations will not allow use for overhead runs.Versatile DesignWhether you’re splitting a hose run for a pair of sanders, or connecting your router table to a shop vac – the applications are endless. Most importantly, you’ll find this 4-Inch by 2-1/2-Inch dust collector hose connector to be a valuable asset to keeping your workshop clean and clear of dust.Premium BuildMade with rugged ABS plastic, this hose connector is tough, highly durable and able to withstand the wear and tear commonly associated with abrasive and high volume use.Compatible SizeTwo 4 inch OD and one 2-1/2 inch OD y fitting nominal ends are slightly undersized to fit inside your 4” or 2-1/2” ID dust hose or port . Will not directly connect to other 4” or 2-1/2” OD ports.4” Outer Diameter: 3-61/64” | Inner Diameter: 3-3/4”2-1/2” Outer Diameter: 2-15/32” | Inner Diameter: 2-5/16”POWERTEC is a leading manufacturer of high quality woodworking tools and accessories, machines, and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry.

Size: 4 x 2-1/2"


Material: Acrylonitrile Butadiene Styrene


Brand: POWERTEC


Color: Black


Item dimensions L x W x H: 10.04 x 6.7 x 3.95 inches


Connector Type: Wye


Thread Size: 2.5 inch


Exterior Finish: ABS


Thread Type: No Thread


Number of Pieces: 1


Brand Name: POWERTEC


Number of Pieces: 1


Model Number: 70190


Number of Packs: 1


Global Trade Identification Number: 30


Manufacturer: POWERTEC


Unit Count: 10 Count


UPC: 709619853730


Included Components: Fitting


Item Type Name: POWERTEC 70190 Y-Fitting, 4 x 2-1/2"


Manufacturer Part Number: 70190


Size: 4 x 2-1/2"


Item Dimensions: 10.04 x 6.7 x 3.95 inches


Connector Type: Wye


Thread Size: 2.5 inch


Thread Type: No Thread


Material Type: Acrylonitrile Butadiene Styrene


Color: Black


Exterior Finish: ABS


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 16 – Sep 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Fits perfectly
Size: 4 x 2-1/2" Style: 4 x 2-1/2" Y-Fitting
Does what it’s supposed to do. Harbor freight hose is a little tough to get on but that’s on harbor freight bit on this company. All other hoses for it perfectly. If you use a harbor freight hose I would suggest using a little dawn dish soap to help it slide on
Reviewed in the United States on May 22, 2024 by Miss Junkin

  • Good Product
Size: 4 x 2-1/2" Style: 4 x 2-1/2" Y-Fitting
Does what it says.
Reviewed in the United States on October 16, 2025 by Satisfied customer

  • Great product with one minor drawback
Size: 4 x 2-1/2" Style: 4 x 2-1/2" Y-Fitting
First off, the fitment on this is perfect, no issues there. I use this connector for my table saw, one going to the main dust outlet at the bottom of the saw and the other up to the blade guard. My only issue, and this is not the fault of Powertec, just an observation. The airflow of the smaller outlet is very weak when both are in use. I did put a blastgate on the bigger outlet so i can use the smaller for my sanders and when only the small outlet is active the airflow is predictable very strong. ... show more
Reviewed in the United States on July 16, 2026 by Martin H

  • Perfect fit!
Size: 4 x 2-1/2" Style: 4 x 2-1/2" Y-Fitting
Exactly what I expected and fit like a glove!
Reviewed in the United States on August 20, 2025 by Sparky

  • Great dual dust collection
Size: 4 x 2-1/2" Style: 4 x 2-1/2" Y-Fitting
Works as designed, use one on my miter saw station and one on my router table
Reviewed in the United States on November 15, 2025 by marilyn

  • Good product. Works as expected
Size: 4 x 2-1/2" Style: 4 x 2-1/2" Y-Fitting
Good product. Works as expected
Reviewed in the United States on June 18, 2025 by Shailesh

  • Must for two dust port tools!
Size: 4 x 2-1/2" Style: 4 x 2-1/2" Y-Fitting
This Y-splitter is very neat and functions well. I ordered two of these - one for my table saw and the other for my band saw. My table saw and my band saw have two dust ports - 4" and 2.5". 2.5" dust ports generally vary between 2.25" to 2.5" depending on how different manufacturers measure it(inner diameter v/s outer diameter) so you might need a flex hose to attach the 2.5" port to the tool. I have attached this to my main dust collection drop off and connect both 4" and 2.5" ports with a blast gate. Before I bought this I used 4" port with the dust collector and 2.5" port with the shop vac. This splitter effectively frees up my shop vac for other uses. Highly recommend it if you have two dust port tools! ... show more
Reviewed in the United States on February 20, 2017 by Kiran

  • Perfect for router table
Size: 4 x 2-1/2" Style: 4 x 2-1/2" Y-Fitting
just what I needed for my router table project!
Reviewed in the United States on March 10, 2025 by Chris

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