48" Schaefer Mobile Box Fan - 20,679 CFM, 1 HP, 115 Volt - Big Fogg
Amazon.com: Hurricane Box Fan - 20 Inch, Classic Series, Floor Fan with 3 Energy Efficient Speed Settings, Compact Design, Lightweight - ETL Listed, White : Home & Kitchen
Lasko B20401 120V 54W 1820 CFM 3-Speed Steel Black Indoor Box Fan 20 in. 787543878388 | eBay
PFG Agriculture Box Fan 36-inch 230 Volt 11100 CFM Direct Drive PFG361– Industrial Fans Direct
4" SQUARE FAN, 80 CFM, 110VAC, BLACK - Quest Manufacturing
48" Schaefer Mobile Box Fan - 20,679 CFM, 1 HP, 115 Volt - Big Fogg
1500 CFM Whole House Fan - CentricAir 1.5 WHF | CentricAir
Amazon.com: Genesis 20" Box Fan, 3 Settings, Max Cooling Technology, Carry Handle, White (G20BOX-WHT) : Home & Kitchen
Triangle PVI4217X 42 Inch Belt Drive Portable Box Fan
AIR KING, Floor Fan, 20 in Blade Dia, Floor Fan - 3GXW8|9505 - Grainger
Air King 9723 20" 2220 CFM 3-Speed Commercial Grade Box | Build.com
Lasko Save-Smart Energy Efficient 20 in. 3 Speed White Box Fan with Built-In Carry Handle 3733 - The Home Depot
Lasko 20 in. 3 Speeds Box Fan in White with Save-Smart Technology for Energy Efficiency, Carry Handle B20201 - The Home Depot