This shutter fan comes with 3 adjustable speeds and build-in thermostat. OSHA with Class B and a temperature range of 32-130F, and a double terminals switch to bypass the thermostat allowing the fan to be always on. Fan fully assembled with 6 ft. long 3 prongs plug.

• Overall Dimension - 21" L x 5.75" W x 21" H
• 16" 3 speed shutter exhaust fan 1600/1515/1420 RPM, 1280 CFM 120 V 60 Hz, 1/20HP, 0.85 Amps 
• No electrician required when plugged into an approved electrical outlet, Fully assembled with 6' long 3 plugs cord
• Weight - 17.5 lbs
• Build-in adjustable capillary thermostat 32-130F with Bypass switch 
• Ideal for exhaust extra heat for room, attic, garage, shed, greenhouse or work shop
• Total enclosed permanently lubricated Class B motor, UL listed 
• 1 year parts and component warranty
• WARNING - Do not use any power adapter, charger or cords other than those included with your product, Using incompatible, counterfeit or non-certified accessories can cause fire or accidents, Contact the manufacturer for replacements
• Aluminum, Steel
• Wipe Clean
• Imported
• Request warranty information