The Honeywell FC40R1094 is a high-efficiency, replacement filter for return grille applications. Designed to capture airborne particles that circulate through the AC filter. Nominal Dimension 12x12x4. This is a genuine Honeywell air conditioning filter.
Honeywell FC40R1094 Specifications:
The FC40R features a special design that allows it to fit in the same space as a standard 1" return grille filter, while offering filtration up to forty times more effective (versus 1" fiberglass filters). This A/C filter will clean your air down to 0.3 microns, trap dust, pet dander, pollen, mold, bacteria and other allergens.
The Honeywell FC4 Series replaces older model number F35R Series Filters and provide a high-efficiency alternative to 1 inch filters. This AC filter should be replaced at least once per year for maximum efficiency. Filter life based on air quality.