Description
4" round, 5 1/2" square grates
The Air Supply Ventilator is installed through an outside wall in less than 30 minutes. No batteries, electrical wiring, or ductwork needed. It works naturally and automatically taking advantage of the negative air pressure inside today's tight homes. Adjusts for walls up to 14" and has an exterior insect screen. It can be shut off manually. Three-year limited warranty.
LEAD TIME TO SHIP:12 days
