The ThruWall Room to Room Fan balances temperatures in adjoining rooms by transfering warm air out of exhaust room quietly and efficiently. Simple to install in any frame wall from 3-1/2" to 6-3/4" thick. A high quality Thermally Protected motor with balanced fan blade moves up to 200 CFM. Move heated or cooled air between rooms.

Key Features:    

Operates quietly and efficiently for year round comfort    
10' long power cord    
2 speeds: 160 CFM on low and 200 CFM on high speed    
The ThruWall's telescoping housing installs inframe walls from 3 1/2" to 6 1/2" thick    
Hole Diameter: 8 inches    
Grille Diameter 9 3/4 inches    
dBA - High-55 Low-49    
Weight 5 lbs    
Amps .75    
Easy to install