The RSI General Purpose Greenhouse Small building electric powered exhaust fan system is designed to fit all structures. You will need to retrofit the exhaust system to their own structure since each structure and building materials are different. If mounting from the outside, a hole in the wall would need to be cut to allow for the fan and interior cage to fit through the wall. The rough dimension is 17 x 17 . Use fasteners (not incl) to fasten the fan to the wall by drilling through the frame and caulking the frame to make it water tight. The fan structure is now 100% enclosed in the building and the louvers are on the outside of the structure. If mounting from the inside, a hole in the wall would need to be cut so that the louvers will be able to open and close freely. This dimension is 16.25 x 16.25 . Slide it in the opening from the inside out. Seal with caulking and fasten the fan to the wall (fasteners not incl).
Low profile is perfect for in areas with limited space/With build in shutter, Aluminum blade durable PVC shutter provides longer life/Heavy duty direct drive motor is totally enclosed maintenance free/Fan is mounted flush to exterior wall/Use in warehouses, hospitals, schools, factories, paint booths, storage facilities, parking garages, greenhouses and gymnasiums/16 fan, 1250 CFM (cubic ft/ minute), 1/10 HP 120 Volts
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