Save heat and seal out the cold this winter!
Manufactured from a durable, lightweight rip-stop material, the fan cap seals ventilation fans to limit energy losses. An elastic strap holds the cap securely in place.
If the fan powers up, the cap will blow off to prevent damage. Fan cover stores easily in a small container when not in use.
- ISFC48 fits fans sized from 36" to 52"
- ISFC54 fits fans sized 52" to 72"
- ISFC80 fits fans sized 72" to 85"
- Color: Black
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