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The Aerostar 20x30x2 is a pleated synthetic air filter made by Con-Air Industries in Orlando, Florida. It comes in MERV 8, 11, and 13 ratings, so you can match filtration to your needs: MERV 8 for standard household use, MERV 11 for pet dander and allergens, and MERV 13 for fine particles like wildfire smoke and bacteria. The 2-inch depth holds about twice the debris of a 1-inch filter and has a lower pressure drop, which is easier on the blower. Reviewers often note that the reinforced cardboard frame holds its shape well, though some find the MERV 13 version restrictive on older systems.
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Lowest price we've seen: $128.75 on Nov 15 at eBay. Tracked across 2 stores since Nov 15.
Reviewers generally find the Aerostar 20x30x2 to be a solid, well-built filter that fits as expected and offers good filtration for the price. Many appreciate the option to choose MERV ratings, though some note that higher MERV versions can reduce airflow.
This Aerostar air filter has a nominal size of 20x30x2. Its actual size is 19 3/4" x 29 3/4" x 1 3/4". Filters in this size are used in older residential furnaces, some horizontal air handlers, and certain light commercial systems.
The filter uses pleated synthetic media with an electrostatic charge. The cardboard frame is reinforced to hold its shape under blower suction. It is manufactured by Con-Air Industries at its Orlando, Florida facility.
The 2-inch depth holds roughly twice the debris of a 1-inch filter at the same nominal size. The lower pressure drop is easier on the blower over the filter's service life. The depth is also more forgiving on older systems where the return ductwork wasn't sized generously. Switching from a 1-inch filter to this 2-inch filter roughly doubles the change interval.
