The AAF Flanders PerfectPleat MERV 8 Pleated Filter is designed for air conditioners and home improvement projects. This filter features a white synthetic media with a paper filter frame, providing efficient filtration for indoor air quality. With a size of 28-1/2 x 16-3/4 x 1", this filter is ideal for keeping your living space clean and comfortable. Made in the United States, this 12-pack filter is a reliable choice for maintaining a healthy environment in your home.