FilterBuy Dirt Devil F2 (F-2) Replacement Filter. Designed by to Replace Dirt Devil Part #'s 3SFA11500X & 3-F5A115-00X. Dirt Devil F2 Replacement HEPA Filter Designed by FilterBuy to replace Dirt Devil part #'s 3SFA11500X & 3-F5A115-00X Premium Allergen Filter Designed by FilterBuy to fit Dirt Devil Dynamite, Power Stick Upright MO84100, Quickvac MO84600 and Power Reach MO8245. FilterBuy: Breathe Better!