Automatic Exhaust Dual Combination Louver Damper:445RBED
The 445RBED features:
• All aluminum construction for low maintenance and high resistance to corrosion.
• Approximately 40% free area with backdraft damper blades full open, based on a 48" x 48" (1219 x 1219) size.
• Operable blades start to open at .01" w.g. static pressure and are fully open at .25" w.g. static pressure
- 4" deep baffle blade louver with back draft damper combination.