Keep everything flowing smoothly in your favorite living and workspaces using these Duck Brand Window Air Conditioner Insulating Panels. They can provide added comfort in the hot summer months as well as close unwanted gaps that let in dust insects and pollen. These air conditioner foam insulating panels are easy-to-install foam seals. They are ideal for closing the spaces between the A/C unit and the window frame and reduce noise and vibration from the A/C unit. These air conditioner side insulating panels can be used together with other Duck Brand weatherization products to make your home office RV or any other place with a window unit more comfortable and energy-efficient throughout the year. One panel is 18 in. x 9 in. in size. Shop Duck Brand 18 in. x 9 in. x 88 in. Window Air Conditioner Insulating Panels today!