Designed to fit the GermGuardian FLT4100 True HEPA Replacement Filter for AC4100 Series, Filter E.
4-Pack of Carbon Activated Pre-Filters
These PreFilters are designed to fit GermGuardian FLT4100 Filter E Model AC4100
Carbon Activated filters extend the life of the hepa filter and remove common household odors
Made in the USA
Aftermarket product meets or exceeds OEM specs