LifeSupplyUSA True HEPA Replacement Filter for GermGuardian FLT5000/FLT5111 AC5000 Series, Filter C Germ Guardian Filter to fit FLT 5000 FLT 5111 AC5000 Filter C True HEPA Filter - Captures 99.99% of particles Prevents mold, mildew and odor-causing bacteria on the surface of the filter. Please note this replaces the Filter C, There is also a smaller filter B. Please confirm size before ordering. Brand New Individually Sealed - By LifeSupplyUSA