Tjernlund UnderAire Crawl Space Ventilator - Deluxe Two-Fan, 220 CFM, Model# V2D  

• Manufacturer  Tjernlund
• Part#   V2D 
• Deluxe two-fan ventilator
• Built-in dehumidistat
• Freeze protection thermostat
• 110V motor
• Sealed bearing motors for long life