Because the air being pumped in collects heat and moisture and impurities from inside the building and it must therefore be exhausted. The Evaporative Air Conditioner does NOT recirculate the inside air, and if you close the building the effectiveness of the machine will be greatly diminished and you will become very uncomfortable.
Wheel Bearing Retainer
1 x $65.00
Brake Conversion Kit
1 x $85.00
OE Replica Wheels
1 x $92.00
Shock Mount Insulator
1 x $68.00
