Lasko 20-in 120-Volt 3-Speed Indoor Black Box Fan in the Portable Fans department at Lowes.com
Lasko 21-3/4 in. H X 20 in. D 3 speed Box Fan - Ace Hardware
Amazon.com: COSTWAY 3-Speed Box Fan, 20 Inches Portable Floor Fan with Knob Control, 2 Supporting Feet, Compact Lightweight Cooling Fan for Full-Force Circulation, Quiet Operation for Home Office Garage, Black : Home
Lasko 20" Classic Box Fan with Weather-Resistant Motor, 3 Speeds, 22.5" H, White, B20200, New - Walmart.com
box fan | eBay
Lasko 20 in. 3 Speeds Box Fan in White with Save-Smart Technology for Energy Efficiency, Carry Handle B20201 - The Home Depot
Amazon.com: Simple Deluxe 20” Box Fan, 3-Speed Cooling Fan with Aerodynamic Shaped Fan Blades, Convenient Carry Handle and Safety Grills,White : Home & Kitchen
Shop the Schaefer Mobile Box Fan - 20679 CFM | Big Fogg