Coast Distribution Ventmate Vent Cushion with Pull Strap -
Ventmate Vent Cushion with Pull Strap.
Simply push the 3" thick R-4 insulated insert into any standard 14" roof vent and save energy. Prevents heat loss during cold nights. Increases A/C efficiency during hot days. Features pull strap for easy removal. Inserts easily into vent. Great for summer or winter. Keeps light out.