Sid Harvey's #264-36 Micro-Flow* Oil Filter Element For Fuel Oil Furnace. Fits Harvey 264, 264F; General 1A-25a; Unifilter 77; Westwood S-254; Mitco 264m, 264FM. Fuel Oil Filter for 1A filter Cans Fits General 1A-25A, Unifilter 77 Sid Harvey Mitco 264, 264F Westwood F30,F32, F35. Westwod