"The 8"" Electrically Reversible Twin Window Fan adds the convenience of in-window reverse and independently controlled motors, making it one of the most versatile twin window fans on the market.
Independent Motor Control for Air Intake, Exhaust, or Exchange
Adjustable Thermostat for Automatic Comfort Control
Two, Whisper-Quiet Speeds
E-Z-Click™ Expander Panels for a Safe, Custom Fit
Fits Windows 25" to 35" Wide and 12" High and Larger