Measuring Length and Width (L x W). (If your filter is not a square, the smallest measurement goes first).
Measure the thickness (Depth) of your filter from front to back.
Put Your measurements together (L x W x D).
A filter’s true dimensions.
Example: 19.75” x 19.75” x 1”
Rounded numbers used by manufacturers.
Example 20” x 20” x 1”
View Detailed InstructionsThe Aerostar 20x25x5 Replacement Air Filter for Trion AirBear 229990-102 and 455602-019 Air Systems features a multi-model fit design (see Additional Specifications for full model list) and is available in multiple MERV filtration levels to suit your lifestyle and needs.
This whole house air filter is designed for residential use. By providing cleaner air, this filter reduces the risk of allergens in the home. It is effective at capturing particles like dust, pollen and mold spores from the air passing through the filter. It is also designed to be effective at attracting and capturing microscopic particles that can carry bacteria and viruses. This filter lasts for up to 12 months before needing replacement.
Replaces brand and part number:
Actual Dimensions:
20 3/8" x 24 1/4" x 4 3/4"
MERV ratings let you know the efficiency and level of filtration that an air filter can handle under normal circumstances. The higher the MERV rating, the finer the particles are that are filtered our of the air in your home. Many air filter retailers use MERV or a similar rating to rate their air filters.
MERV Rating is the primary rating system used in the industry, both domestically and internationally. Established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers, MERV rates a filter’s ability to capture and hold particles and pollutants.
MPR Rating is a rating system developed by 3M. It rates the manufacturer’s Filtrete product line and their ability to capture airborne particles smaller than 1 micron.
FPR Rating is a rating system developed by The Home Depot for brands sold through their stores, including Honeywell. It utilizes a color code and number scale (4 to 10) that closely resembles the MERV rating.
Overall rating: 5.0 / 5 from 9 reviews.
Review topics: ["filters"].
"Only when you have an issue with your order does a company has an opportunity to show their worth. In my case they sent the wrong size. I sent an email and within 15 minutes they responded with apologies. They sent out the correct size in a timely manner and followed up with an email after the correct filters arrived. This is the type of business I will continue to use because they made it right quickly an no hassles. Thank you, Pete Grande"
"Really great quality filter, came quickly. So glad I found this site for my filters."
"Exactly what I was needing and a GREAT PRICE"
"The filters are highly rated with a lower price than other vendors. There was a shipping issue and one box was crushed by delivery. I notified Factory Direct Filters and they immediately replaced the filters. I will always use Factory Direct in the future for our filter needs."
"It took about we week to leave the shop and 10 days for me to get, however I was in no hurry and the filter were just what I ordered. Job well done."
"Both filters showed up seriously damaged in shipment, and you should replace both immediately. They are barely useable."
"On a recent order I received air filters that were a different size than what I ordered. I contacted Factory Direct through their website of the issue. The following day I received an email stating that the replacement filters were on the way. Within a few days, I did receive the replacement filters that were correct. I was impressed with the prompt response. Thank you"
"Very satisfied with this filter, have purchased from factory direct filters for years!"
"Great convenience."
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