Actual appearance may vary to that shown above.

Standard Duct Reducers

Useful for reducing the diameter of your ductwork runs for connecting to your tools and/or flex hose.
As low as $6.76

This Galvanized Steel Ductwork Reducer is raw (uncrimped) on both ends and is available in a variety of pipe diameters. Useful for reducing the diameter of your ductwork runs for connecting to your tools and/or flex hose. Ends measure 2" deep and can be crimped in the field using a common Crimper Hand Tool.

Using Reducers With Molded Super Dust Deputy Cyclones

If you are connecting our steel reducers to black Super Dust Deputy cyclones made from molded resin, please refer to the diagram below for item #s and instructions on which ends need to be crimped.
Super Dust Deputy Reducer Installation Instructions

Length of Ends1.875"
Ductwork TypeStandard
Connection TypeFemale
Primary Build MaterialsGalvanized Steel
Thickness24 Gauge
WeldingSpot Welded
Static Resistance RatingConductive (Metal)
Country of ManufactureUnited States
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Frequently Asked Questions
What's the best way to apply foil tape on ductwork?

We've heard from many customers who've had great success using a simple Wallpaper Roller to smooth out their foil tape, giving a very smooth, clean look on your ducting. The roller helps smooth out air bubbles and crinkled marks while making it easier to get those hard to reach places on hanging ductwork.

We do not carry this product but it can be found easily at your local hardware store or home renovation outlet.

  California Residents: Please visit for information regarding Proposition 65 for our products.

Oneida Air Systems (OAS) is not responsible for typographical errors, omissions, or other clerical errors that may occur and makes every effort to provide the most detailed and accurate information available regarding our products. If you encounter incorrect information, please contact us. OAS reserves the right to restrict quantities and correct prices when necessary.