Axial Window Fans with Cover (GK Sereis) Decorative Automatic Shutter Mini Fan (GWM Series) Decorative Powered Mini Fan (GD Sereis) Decorative Powered Mini Fan with Shutter (GPJ Series) Super Slim Automatic Shutter Ventilating Fan (WPL-A Series) Super Slim Automatic Shutter Ventilating Fan (WPL-A Series)