Filterbuy 20x25x4 Air Filter MERV 11

The AFB Gold MERV 11 furnace / air filter is recommended for home or business owners that have pets as it is specifically designed to filter particles as tiny as one micron including pet dander lint dust dust mite debris pollen and mold spores auto emissions smoke. Whenever you are choosing an air filter make sure that you compare the nominal and actual size of the furnace filter that you are replacing. In this case the nominal size of the filter is 20x25x4 while the actual size of the filter is 19.5 x 24.5 x 3.75. Generally the nominal size is rounded and in bigger print while the actual size is in smaller print and in parenthesis to the side. The AFB Gold MERV 11 filter is designed to last 3 months or 3 times the average fiberglass filter. The most commonly used filter for home or business use is the AFB Silver Merv 8. AirFilterBuy: Breathe Better!