
Specs
| Item | Backdraft Damper |
|---|---|
| Type | Wall Mount, Supply |
| Damper Size (In.) | 15 x 15 |
| Overall Size (In.) | 17-3/4 x 17-3/4 |
| Flange Width (In.) | 1-3/8 |
| Max. Velocity (FPM) | 2000 |
| Construction Material | 16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware |
| Use w/Dayton Ventilators | 4HZ58, 4HZ59 |
| Includes | Felted Edges For Quiet Operation |
| UNSPSC | 40101504 |
| Weight | 3.950000 |
| SKUs | 4HX77 |
Description
- WARNING: Not for use with kitchen exhaust applications.
- 16-ga. mill-finish extruded aluminum frame, 1-1/2" deep with 1-3/8" flange. Mill-finish aluminum louvers have galvanized steel reinforcement strip. Spring close for positive seal.
- Backdraft Dampers
- For belt-drive centrifugal roof and wall ventilators. Max. velocity: 2000 fpm for models up to 19" and no-flange, 2250 fpm for 23" and larger.













