Yes, there are products available to fill the gap in a window wider than the side panels that come with a window-mounted air conditioner. These products are commonly known as window air conditioner extension panels or window air conditioner filler panels. They are designed to extend the width of the side panels provided with the air conditioner unit, allowing for a proper fit in wider windows.
Window air conditioner extension panels are typically made of lightweight and durable materials such as plastic or acrylic. They come in various sizes and can be adjusted or trimmed to fit specific window dimensions. These panels are easy to install and often feature adjustable brackets or slide-in designs that allow for a secure and snug fit.
When purchasing window air conditioner extension panels, it is important to ensure compatibility with your specific air conditioner model and window size. Some manufacturers produce extension panels specifically designed to work with their own air conditioner units, while others offer universal panels that can fit a range of models.
To find the appropriate extension panels for your window-mounted air conditioner, you can check with the manufacturer of the air conditioner unit or search for universal extension panels available from various retailers or online marketplaces. Additionally, home improvement stores or specialty retailers that sell air conditioning equipment may carry these extension panels or be able to provide guidance on suitable options for your specific needs.