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Dayton 3hhl4 Backdraft Damper Vert/horiz Mtg
$17.95
Dayton 3HHL4 Backdraft Damper, Vert/Horiz Mtg, 7 3/4 Sq
- Max. Velocity (FPM) 2000, Construction Material G-90 Galvanized Steel Frame and Aluminum Blades, Use w/Dayton Ventilators
- Includes Pre-punched Conduit Hole Knock-out and Felted Edges For Quiet Operation”
Description
This model is a non-flanged exhaust backdraft damper. The blades have a felt seal on the leading edge for quiet closing and better protection from the weather. Spring assisted to allow blades to open quickly. Ideal for use in roof curbs, duct work, or wall collars when using a fan or power roof ventilator.
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