To simplify installation, project finish packs are ideal for builders and contractors. When drywall work and painting is complete, the Fan components needed to finish the job are available in single packs under separate A80F numbers. This patent-pending series Marks a revolution of our mid-range ventilation fans. Innovations include foldable mounting ears and new damper and housing technology that improve building airtightness like never before. And all with new grille designs that are at home in any decor.