Tight sealing shutters that can easily be manipulated by an electric actuator to create a
fresh air intake.
*Shutters remains tightly sealed when in closed position.
*Shutter opwning is not affected by the weight of dust desposited on the shutter blades.
*Trouble free automation.
*Available in different sizes.
Provides a controllable air entry passage when low ventilation rates are required.
*Constructed from durable non corrosive materials.
*Safety mesh for preventing wild bird entry incorporated.
*available in different sizes.