HQRP Filter 2-Pack for Electrolux EL020 EL8505 EL8505B Versatility, EL7085 EL7085ADX UltraOne Deluxe Ultra-One 87979 Vac Vacuum Cleaner S-Filter + HQRP Coaster HQRP&reg; Two Replacement Filters plus HQRP&reg; Coaster; This filter is HEPA filtration class H13 and retains 99.99% of particles down to 0.3 micron. 100% Compatible with Original filter; 2 weeks DOA replacement warranty!