The Filters Fast MERV 8 20x24x5 Air Filter (2-Pack) is the correct replacement part for the following:
The FiltersFast MERV 8 20x24x5 Air Filter can be used in all Generalaire AC-1, Carrier 31MF020100, Byrant 902BXX020, and all other air cleaner systems that require a 20"x24"x5" filter media. This twp pack of Filters Fast Air Filters are a cost-effective upgrade from simple poly-pleated or fiberglass filters. They are efficient air filters that remove airborne contaminants such as pollen, dust, pet dander, mold spores, dust mites, and other allergens to provide healthier indoor air. In addition, FiltersFast filters can extend the life of your system by helping your HVAC system work more efficiently.
Filters Fast 20x24x5 Air Filter Specifications:
Filters Fast filter media cartridges should be maintained on a consistent basis for optimum results and efficiency. Air filter media are recommended to be replaced 3-6 months regularly, depending on system use.