Opening/closing damper prevents outside elements from entering the vent. Damper is spring loaded to keep damper closed when not in use. Screen prevents birds from nesting inside of vent. UV inhibitor is used to help prevent the premature fading of vent. 6" diameter, gray. With spring controlled damper.
| Id | 21459 |
| SKU | 260215 |
| PartNo | 351GR |
| UPC | 00039899003519 |
| Country of Origin |  USA |
| Size | 6 In. |
| Color | Gray |
| Material | Plastic |
| CID | 1 |
R.P. Lumber - Edwardsville, IL