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POWERTEC 70276 4-Inch to 2-1/2-Inch Dust Collection Splitter Fitting

  • Based on 1,374 reviews
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Availability: In Stock.
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Arrives Monday, Oct 12
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Size: 4" x 2.5" x 2.5"


Features

  • INCLUDES: (1) 4 to 2-1/2 Dust Collection Hose Splitter
  • FUNCTION: Allows you to connect a 4 ID dust hose with two 2-1/2 ID dust hoses, while providing minimal suction loss from your assorted connections
  • APPLICATIONS: These dust collection fittings are perfect for optimizing the effectiveness of your dust collector system when paired with standard shop vac or other 2.5 hoses
  • BUILD: This y-adapter splitter is made with impact resistant ABS plastic for long-term durability and a heavy duty profile commonly needed for workshop and woodworking set-ups
  • PORT DIMENSIONS: 4 Nominal OD 3.902 or 3-29/32, ID 3.733 or 3-47/64 2-1/2 Nominal OD 2.5 or 2-1/2, ID 2.32 or 2-21/64

Description

Introducing the 4” to 2-1/2” Dust Collection Hose Splitter by POWERTEC. This dust collection adapter was designed to give you the ability to connect a 4-inch (inner diameter) dust hose with a pair of 2-1/2-inch (inner diameter) dust hoses. Essentially, it allows you to run multiple shop vacuum lines off a single 4” hose. It is ideal for both, the professional workshop and DIY setup that utilizes an assortment of benchtop and portable setup for woodworking and dust collection projects. Commonly Used Applications Sanding Woodworking Saw Dust Collection Planing and Routing & more! Dependable Build Quality Made with high quality black ABS plastic, this y-type dust collection accessory is made to withstand the wear & tear commonly associated with sawdust, woodchips and other harmful dust particles found in the workshop. It is chemical repellent, impact resistant and durable for long-term use. Please note that the ends are not tapered and the actual dimension is close to nominal. All ports possess a minimum of 2” length to provide optimum room for a tight and secure connection. Port Dimensions 4” Nominal OD – 3.902” or 3-29/32”, ID 3.733” or 3-47/64” 2-1/2” Nominal OD – 2.5” or 2-1/2”, ID – 2.32 “or 2-21/64” 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 2.5" x 2.5"


Material: Plastic


Brand: POWERTEC


Color: 4" to 2-1/2" Y-fitting


Item dimensions L x W x H: 7.2 x 4.3 x 9.9 inches


Connector Type: Adapter


Exterior Finish: Black


Thread Type: NPT


Item Weight: 0.27 g


Number of Pieces: 1


Brand Name: POWERTEC


Number of Pieces: 1


Model Number: 70276


Number of Packs: 1


Global Trade Identification Number: 35


Manufacturer: POWERTEC


Unit Count: 1 Count


UPC: 843441107835


Item Type Name: 4-Inch to 2-1/2-Inch Dust Collection Splitter Fitting


Manufacturer Part Number: 70276


Size: 4" x 2.5" x 2.5"


Item Dimensions: 7.2 x 4.3 x 9.9 inches


Item Weight: 0.27 g


Connector Type: Adapter


Thread Type: NPT


Material Type: Plastic


Color: 4" to 2-1/2" Y-fitting


Exterior Finish: Black


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 12

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


  • Value in dust collection equipment
Size: 4 Inch
Works great. Powertec is always a solid choice and excellent value.
Reviewed in the United States on October 29, 2025 by Robert Justiana

  • Good fit for my shop's dust collection system
Size: 4" x 2.5"
I'm always modifying my dust collection system in the shop. This particular fitting has come in handy as I modify the router table's ducting. The price is right. It should last a long while. Fits the flexible dust collection hoses perfectly.
Reviewed in the United States on August 25, 2026 by Charles M.

  • Solid., must buy
Size: 4" x 2.5" x 2.5"
Very useful of big vac for DIY connections ., wrap in duct tape when installing for great seal
Reviewed in the United States on July 9, 2026 by Ken

  • Good
Size: 4 Inch
Good
Reviewed in the United States on November 20, 2025 by Verified purchase

  • Inexpensive, plastic “Y” fitting
Size: 4" x 2.5"
Used this fitting to provide multiple dust collection ports to an older Grizzly band saw. (See below the saw, right-hand corner) The saw already had a port at the base of the saw but I wanted to add a dust pickup just below the table at the blade. This is where a significant amount of dust is created and gets airborne. The secondary hose is held in place by a couple of magnets and a string. The hose is removable allowing the collection on dust around the saw. ... show more
Reviewed in the United States on June 21, 2026 by DAVID M.

  • Perfect solution for my bathroom fans
Size: 4 Inch
Perfect solution to my bathroom fans and better than a tee
Reviewed in the United States on July 3, 2026 by Ink Independent

  • "It made all the difference!"
Size: 4" x 4" x 4"
Robert Frost wrote about coming to a fork in the road and taking the "Road less travelled." I found this thing and realized that I could make my shop 90 per cent cleaner than I had been able to manually do it with a brush and dustpan. When I installed a whole shop vent system - my dust and dirt problem became very manageable, and I could concentrate on other things. As Frost found out, "It made all the difference!" ... show more
Reviewed in the United States on October 28, 2025 by CHARLES E DAVENPORT

  • Well made, works perfectly, measurements are spot on.
Size: 4 Inch
Exactly as advertised. I use this to hook both of my laser enclosures to one extractor. Works perfectly.
Reviewed in the United States on February 6, 2025 by The Dysfunctional Woodworker - CannMan

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