Denali Aire 20 In. 3-Speed White Weather Resistant Box Fan - Thomas Do-it Center
Aoibox 20 Inch 3 Speed Portable Floor Fan Box Fan in Black with Knob Control SNSA05FN009 - The Home Depot
Amazon.com: Tangkula 3-Speed Box Fan, 20 inch Floor Fan for Full-Force Circulation with Air Conditioner, 3 Settings, Adjustable Dial, Carrying Handle, Portable Floor Fan for Home, Compact & Lightweight (Black) : Home
Lasko 20" Galaxy Box Fan with 3 Speeds with Snap-on Feet, B20100, White - Walmart.com
Lasko B20201 20" Box Fan with Save-Smart Technology – GuardianTechnologies
20 Inch Weather Resistant Box Fan, 3 Speed for Window/Table - Black | eBay