Check the listing for details. Window Air Conditioner Foam Insulating Panels Kits AC Units Insulation Side Pane. Condition: New. Listed at 29.03 USD. Window Air Conditioner Foam Insulating Panels Kits AC Units Insulation Side PanelSPECIAL DESIGN: This Air Conditioner Side Panels design to Insulates or replaces existing side panels, black color blends with most AC units.ENERGY SAVE: Fits most 5,000-12,000BTU ac units, design to insulates gap between air conditioner units and window frames, help against dust, keep out cold air in winter and prevent heat in summer.MULTI FUNCTIONAL MATERIALS: Made of Soft and porous foam, absorb vibration and noise, seal out dust and odor.EASY TO CUT: Provide self-stick side channels for fast installation, easy to cut the size your need.BUY WITH CONFIDENCE: Package includes 2 pieces of foam panel with self-stick side channels. Measures 17inch H x 9inch W x 7/8inch D.