EnviroCare Replacement Vacuum HEPA Filters for Eureka HF-2 Ultra Smart, Boss, Omega, UltraSmart Vac Cyclonic, Whirlwind Uprights 2 Filters Fits: Fits: Eureka Ultra Smart upright, Upright Boss, Omega Upright, UltraSmart Vac Cyclonic,Whirlwind Vacuum cleaners or others using HF2 Filters EnviroCare Premium aftermarket Part #938 Eureka HF2 Filter 62880 4800 61111 61111A 61111B BY ENVIROOCARE Replaces part number 61111 and 61111A.