Frost King HD11 Baseboard Air Deflector, Heavy Duty, Clear Plastic with Magnetic hold, Fits baseboards up 25′ wide, Adjustable 15″ to 25″


Price: $7.38
(as of Apr 13, 2025 14:05:07 UTC – Details)



Frost King HD11 Baseboard Air Deflector, Expands from 15″ to 25″, 15-25 Inch
Heat & air deflector with dust filter, for Central forced air systems
Improves household heating, and cooling, while filtering air
Redirects air flow for better heating or cooling
Improves airflow
Adjustable from 15″ to 25″
Note: The unit will only work with metal heat registers, it uses magnets to attach to the heat register.

Customers say

Customers find the air deflector works well, particularly with ceiling vents and 4×10 ceiling vents, and appreciate its good value for money. The product is easy to install and effectively redirects airflow, with one customer noting it works well with low volume air flow. While some customers report the magnets are strong enough to stay on, others find them weak, and opinions on size adjustment are mixed, with some finding it adjustable while others say it’s too small. Durability receives mixed feedback, with some finding it durable while others report it being easily broken.

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