PetSafe Extreme Weather Sliding Glass Pet Door Large

Energy-efficient sliding glass pet door has dual-paned glassalong with weather stripping to keep the elements outand your heat or air conditioning in. Easy to install into your sliding glass door track with an adjustable height to ensure a proper fit. Includes 3 flexible insulating flaps with a magnetic seal to help insulate your home. Use the security bar to keep your home secure without removing the pet door. Paw-fect for doggos and cats.