Think Crucial Replacement HEPA Style Filter Fits Hoover Windtunnel Bagless, Washable and Reusable, Part 40140201 and 43611042 40140201 - The Home Depot
Hoover HEPA Filter for UH74205, UH74210 UH74200, UH74205 Pet Bagless Vacuum Cleaners #440012453
Amazon.com - HQRP 2-Pack HEPA Filter Compatible with Hoover Foldaway Widepath TurboPower Runabout Bagless Upright Vacuum Cleaners, Parts 40130050 43615090 Type 50 Replacement - Household Vacuum Filters Canister