Two Window Side Panels & Mounting Bracket For Sale - Brand New! Never used. Came with a new air conditioner purchase, but pieces weren't required. Dimensions below: - Top Mounting Bracket - 18.5" L x 1.5" H - Two Window Side Panels - 11.25" L x 13.75" W Price firm at $60. $140 value. Downtown Regina pick up. Listed on other sites.