FILTER FUEL OIL SM by MITCO MfrPartNo 264-1AM Small High grade wool material Includes gaskets and disposal bags Individually packed for protection Fits AutoFlo F300, General Filters 1A-25A, Mitco 264, 264F, 264M (Catalog ID: 40759574), Sid Harvey 264 and 264F, Unifilter 77, Westwood S254 and Edco S254.