DCE 720 , drop ceiling exhaust fan, 720 cubic feet /minute $459

Drop  ceiling exhaust fan cools rooms by exhausting hot air @ ceiling, while pulling coolest air from next area, through cool air intakes(included)@ floor . Faster cooling than air conditioning for server rooms, equipment rooms & data centers.  low profile design, 3 fan motor system, 240 CFM/ fan,, fully assembled, adjustable thermostat control, 110 volt, dual ball bearing motors, 50,000 hour life, exhausts full 24" ceiling grid width. Lower shipping costs,5 year warranty.  DCE 480 pictured

Low profile, easier to install, reduced shipping costs