The product is a pack of 12 AAF American Air Filters 173-319-011 Pleated HC M8 MERV 8 filters. These white filters have a synthetic filter media and are designed for use in air conditioners and furnaces. Manufactured in the United States, the filters are made with a paper filter frame material. With a MERV rating of 8, these pleated filters are efficient in trapping airborne particles to improve indoor air quality.