The Lasko 7" Twin Window Fan 2137 cools you down both day and night. Use it for exhaust during the day for a refreshing indoor breeze, or use it for intake at night, to draw in the cool evening air. Made to fit most double-hung, casement, and sliding windows, the Lasko 7" Twin Window fan will get you cooled down fast!

Product Specifications:

• Style: Window
• Speeds: 2
• Dimensions: 21.75" W x 10.5" H x 4.75" D
• Weight: 5 lbs
• Color: White

Features and Benefits:

• Fits virtually all window types, including double hung, vertical slider windows, and casement windows
• Can be positioned in window for either intake or exhaust
• Slim profile helps maintain outside view
• Fits windows from 22" to 34"
• Expander panels
• Patented fused safety plug
• 1 year limited warranty