Constructed from foam Designed to fit snugly within cavities of the older Norwesco design block vent (not included) Lightweight and easy-to-install or replace seasonally Includes a pair of pre-attached vent plugs Help reduce utility bills
Product Specification
| Series Name | N/A |
|---|---|
| Material | Polystyrene |
| Length (Inches) | 13.5 |
| Width (Inches) | 8.75 |
| Depth (Inches) | 13.5 |
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