Frost King Air Conditioner Filters, 15"x24"x3/16", Open cell foam Manufacturer: THERMWELL Manufacturer Part Number: F1524 Frost King Washable Foam Air Filter For Air Conditioners, 24X15X1/4 In. - 471002 15-Inch X 24-Inch X 1/4-Inch Air Conditioner Filter Frameless Polyurethane Design Helps Remove Dust, And Pollen From The Air For Allergy Relief Lasts Up To 36 Months Washable, And Reusable Product