The 2137 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.
7" Twin Window Fan 2-Speed
177.8 mm Blade Span
Certifications & Standards
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