Just in time for summer, grab the Holmes Dual Blade Twin Window Fan, White for only $16.64.
http://www.amazon.com/Holmes-Dual…B00008XE
Dual-blade operation
Two speed-settings and manual-reverse air flow control
Water-resistant motors are safe to use during rainy weather
Designed to fit most double-hung and slider windows, Ideal for large rooms
Adjustable extender screen and extender panel help secure fan in larger windows, 1-year limited warranty