4-3/8″ HONEYWELL REPLACEMENT CARTRIDGE MEDIA AIR FILTERS
MERV 11 Replacement Media Air Filters for Honeywell Air Filters
4″ (3.75″) REPLACEMENT CARTRIDGE MEDIA AIR FILTERS
MERV 8, MERV 11 and MERV 13 Replacement Media Air Filters for Field Controls Healthy Home System Trio Air Purifiers
FLEX-4 REPLACEMENT CARTRIDGE MEDIA AIR FILTERS
Patented FlexFilter Flex-4 is compact, easy-to-assemble, and replaces Flex-4 replaces Honeywell, Carrier and Bryant media air filters.