| Item Thickness | Not Specified |
| Shape | Round |
| Unit Count | 1.0 Count |
| Power Source | Not Electric |
| Size | 4 Inch |
| Item Diameter | 4 in |
| Color | Silver |
| Material Type | Iron |
| Thread Type | Npt |
| Brand | Unbranded |
| Type | Manual Damper |
| Voltage | Not Electric |
| Unit Quantity | 1.0 count |
| Item Weight | 1 lb |
Unit Quantity: 1.0 count Material: Galvanized Steel,Iron,Galvanized Iron Power Source: Not Electric Compatible Product: Central Air Conditioner,Dryer Vents,Exhausts,Range Hoods,Heating Systems,Fans,HVAC Systems.