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These are Aerostar AC and Furnace Air Filters. The nominal size is 20 inches by 20 inches by 1 inch and the actual size is 19.5 inches by 19.5 inches by 3/4 inch. These seem to be great quality air filters for a reasonable price. I love that they come in a bulk pack. I got these for my husband to use at work since they work in an area that has high dust at times. It is so important for you and your family to keep the air that they breathe clean. These filters help fight lint, dust mites, mold spores, pet dander, and dust. The recommended change frequency for these filters is every 60 to 90 days. This is the size that they use at my husband's work, but these filters are offered in other sizes. Not only will changing the filter in your AC and furnace better the health of you and your family but it will also enable your unit to work at it's fullest potential and have the best air flow possible. Please click the link below to view the product.
***I received this item free in exchange for my honest and unbiased opinion, which is what I have given***
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