Yes, there are products designed to fill the gap in a window that is wider than the side panels of a window-mounted air conditioner. These products are often referred to as "air conditioner side panels" or "air conditioner filler panels." They are specifically made to close the space between the sides of the air conditioner and the window frame, providing a better seal to prevent air leakage and improve the unit's efficiency.
Here are some common types of air conditioner side panels or fillers:
Adjustable Panels: These panels are adjustable in width, allowing you to extend them to fit the gap on either side of the air conditioner. They are typically made of plastic or foam and can be trimmed to the desired size.
Foam Seal Strips: These are foam strips that can be placed on the sides of the air conditioner to fill the gap. They are easy to install and provide a flexible seal.
Plexiglass or Acrylic Sheets: Some people create custom filler panels using plexiglass or acrylic sheets. These can be cut to the appropriate size and then secured to the window frame or air conditioner using brackets or adhesive.
Window Insulation Kits: There are window insulation kits available that include plastic film and double-sided tape. While primarily designed for insulation purposes, they can also help fill the gap around the air conditioner.
When purchasing or using these products, it's essential to ensure proper fit and seal to maximize the air conditioner's efficiency and prevent drafts. Additionally, always follow the manufacturer's guidelines for installation and usage to avoid any potential safety or performance issues.