Cool Attic CX2121 Automatic Gable Vent Shutter, High Impact One-piece ABS Cycolac Frame by Cool Attic

描述

For use with CX1500 and CX1600 gable vents;Not for use with VX2515SOLARGABL solar gable fan;Louvers open automatically when ventilator is operating;When ventilator turns off louvers close to keep out insects, rain and dust