These replacement air conditioner Foam Filters are compatible with Frost King Models F1524 and 471002. Dimensions measure 15 x 24 x 3/16 in. Sold as a 2 Pack. Foam filters are washable and can last up to 36 months. Removes dust, pollen, and other allergens from the air to provide allergy relief year-round. Meets the flammability requirements of S4.3 of Federal Motor Vehicle Safety Standard No. 302.