This came from a 2 pack, but had to remove the 1 due to it showing signs of use. Only kept the one still new and sealed filter. See photos.

This high-quality Aerostar air filter is designed to keep your indoor air clean and fresh. With a MERV rating of 13, it is highly effective in capturing airborne particles and pollutants, including pollen, dust mites, and pet dander. The filter is white in color and measures 26 inches in length, 20 inches in width, and 4 inches in height.

Made from HEPA-type filtration technology, the filter media is pleated and has a filter life of up to 4 months. This pack contains one filter and is suitable for use with an air purifier. The model is x and the country/region of manufacture is unknown. With these features, this air filter is an ideal choice for anyone looking to improve their indoor air quality.