-Integration of the square housing and weather hood provides easy installation;

-Wheel balance level up to G2.5;

-Standard configuration includes 90 degree weather hood, stainless insect screen and back-draft damper that effectively prevent foreign projects getting into the indoor and avoid flow backward, with rain guiding groove, rain is prevented from getting into the workshop;

-Maintenance-free structure;

-Exposed bolts are made of stainless steel.