3M Filtrete Eureka / Hoover / Electrolux HF-16 / WindTunnel Air High Efficiency Allergen Vacuum Filter fits vacuum models EUREKA* Endeavor* Never Loses Suction (5400 Series), Zuum* (AS5210 Series) and Air Excel* (AS5200 Series) Uprights. HOOVER* WindTunnel* Air* (UH70400 Series) and Air* Steerable (UH72400 Series) Uprights. ELECTROLUX* Pronto* (EL8400 Series) Uprights.