Since 1990, Read our Story
When you spend $50+
Air Conditioning Side Insulators let you keep your big, heavy window unit in place all year long! Foam insulation installs easily over existing side panels of air conditioner unit. Keeps hot air out in the summer; cold air out in the winter. Also reduces air conditioner noise and increases efficiency. Set of two 18" x 9" insulators, each with self-stick side rails.