Fantech RVF6 6-Inch Centrifugal Duct Fan with 242 CFM - Exterior Wall Mount Ventilation Fan for Home, RV, and Commercial Use - Perfect for Attics, Garages, and Workshops

I've only had it installed for a couple weeks, but so far this fan is working out great! I am using it to vent the garage when I drive in and out (hooked to a door sensor) and to run when the temperature in the garage reaches 90 degrees. It's pretty loud, but it really moves the air, and it's not a bad sound. Also, I have it vented straight through the wall with only 7 inches of ducting, so it would probably be more quiet with more duct length. I did install a backdraft damper with it, which works perfectly. The build quality of the fan seems great and it uses a heavy duty, German made motor. I have no reason to expect any troubles with this unit. I've added a few photos.