Automatic Round Dampers (ARD)
- Outstanding seal - Built with gasket to ensure low leakage of less than 1 percent
- Sizes available from 5" to 20"
- Modulating round dampers (MARD) available from 6" to 18"
- Fresh air dampers available in power open/spring close orientation (EAR)
- Rugged construction built to last
- Gears built with Dupont™ Kevlar® fiber
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