Rear Flange
Medium-Duty Backdraft Dampers
- Features
- Documents
- Rear Flange install type backdraft dampers are manufactured with a 1 7/8″ (47.6 mm) flange at the back and a 5/8″ flange at the front.
- A ¼” (6.4 mm) clearance is deducted from a Rear Flange install type. This affects the effective flange.