Actual appearance may vary to that shown above.

Heavy Long-Tapered Reducers

Made from heavy-gauge, galvanized steel using a long-tapered design to minimize air resistance. Pre-crimped on the larger end for fast and simple installations.
As low as $31.00

Industrial Grade Material Handling Ductwork

These heavy reducers are pre-crimped on the larger end for fast and simple installation into existing ductwork. Constructed from spot-welded, galvanized steel with a long-tapered design that minimizes air resistance. Designed for use with dust materials such as wood, concrete, clay/silica, plant waste, etc.

Crimping Duct Reducers

Length of Ends2"
Ductwork TypeSpiral Pipe
Connection TypeMale / Female
Primary Build MaterialsGalvanized Steel
Thickness20 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.