The versatile 7″ Twin Window Fan cools both day and night! Set on exhaust during the day, the fan creates a refreshing indoor breeze that expels accumulating heat. Set on intake at night, it draws in the cool evening air. Fits most double-hung, casement, and sliding windows.

• Can Be Positioned for Intake or Exhaust
• Slim Profile to Maintain Outside View
• Fits Most Windows: Double-Hung, Casement, Sliding...
• Expander Panels for a Custom Fit(Fits Windows from 22″ to 34″ wide)
• Two Quiet, Energy-Efficient Speeds
• Fully Assembled for Window Use(Snap-On Feet Included for Floor or Table Use)
• E.T.L. Listed