Item: Filter Element, Type: Replacement Cartridge, Element Material: Paper, Inside Dia. (In.): 3, Outside Dia. (In.): 4-3/8, Height (In.): 2-5/16, For Use With: Mfr. No. FS-15-075, FS-15-100, 5Z660, 5Z661, VFD2S, VFD3S, For Use with Blower No.: FS-15-075, FS-15-100, 5Z660, 5Z661, VFD2S, VFD3S