QuietCool Classic Whole House Fan QC CL-4700 Applied Membranes Inc. The Pargro technology sets these

The Pargro technology sets these blocks apart from the rest

Mist cuttings (Clonex Mist is recommended)

storage solution

DRAMM has meticulously developed this upgrade to meet the highest standards of safety and performance

QuietCool Classic Whole House Fan QC CL-4700 Applied Membranes Inc. The Pargro technology sets theseQuietCool QC CL 4700 Classic whole house fan The QuietCool QC CL 4700 Classic moves 4,757 CFM on high and 3,586 on low to pull cool outdoor air in and push heat out. It cools homes and grow spaces up to 2,400 square feet. A patented acoustical duct and R5 insulated damper box keep it whisper quiet at 54 dB. Two speeds draw 533W high and 491W low on 120V. Quiet two speed attic ventilation for grow rooms Growers flush heat from lights and equipment