* Engineered to provide the most CFM with the least amount of energy
* Outside wind assists the motor
* Aerodynamic internal cone to guide exhaust
* Negligible back pressure
* Exhausts air continuously even when the motor is off
* Collars are available to provide a higher stack up to 36" where required
* Timer, humidistats and thermostats are optional
* The vent is all aluminum construction
* Negligible roof loading
* Standard square flange for mounting directly onto the roof
* Adaptable with all types of roofs (no curb required)
* Thermostatically controlled back draft damper available
* Curb mount base available