factorydirectfilters.com · www.factorydirectfilters.com
19 3/4x21 1/2x1 Aerostar Air Filter
MERV 8, 6
4.9 out of 5 · 388 ratings
$129.99 at factorydirectfilters.com right now, from Shopify.
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Reviews
Rated 4.9 out of 5 by 388 shoppers.
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About this product
The 19 3/4 x 21 1/2 x 1 Aerostar fits a return that nominally would be called a 20x22x1 but actually measures 19 3/4" x 21 1/2" x 1". Odd-sized returns like this appear in custom HVAC installations and certain regional construction markets where the original installer didn't size to a standard nominal opening. MERV 8 covers standard residential dust and pollen filtration. MERV 11 handles pet households and most common allergens. MERV 13 captures fine particulates including smoke, bacteria, and virus carriers - the grade for households with respiratory issues or in wildfire-affected regions. Pleated synthetic media with an electrostatic charge built into the fibers does the actual filtration work. The pleats give you substantially more surface area than a flat fiberglass filter at the same nominal size, extending the service life to a 60-to-90-day window in typical residential conditions. The electrostatic charge catches sub-micron particles where the physical weave alone reaches its limits. Manufactured in the USA by Con-Air Industries, Orlando, Florida. Cardboard frame, reinforced to maintain shape under blower suction. Odd-size filters benefit most from dimensional precision because an off-spec filter leaves gaps where unfiltered air bypasses the media entirely.
- Pleated paper filter design: Enhances filtration efficiency by trapping airborne particles
- Disposable construction: Simplifies maintenance and replacement for users
- Compatible with most AC and furnace systems: Offers broad usability for home and office environments
- Removes dust, pollen, and bacteria: Supports healthier indoor air quality
- Available in multiple sizes: Ensures a precise fit for various vent intake requirements
- Filter Material
- Paper
- Filter Type
- Pleated
- Usage Type
- Disposable
- Compatible Systems
- Most home and office AC and furnace systems
- Available Sizes
- 12x12x1 in, 14x14x1 in, 14x20x1 in, 16x16x1 in, 16x20x1 in, 16x25x1 in, 20x20x1 in, 20x25x1 in, 20x30x1 in, 20x35x1 in, 25x25x1 in, 25x30x1 in, 30x30x1 in
- Color
- White, Blue, Green
Photos, details and ratings from factorydirectfilters.com, through Shopify.
How Sinclair checks, and what the verdicts mean
TrueFinds records factorydirectfilters.com's prices once a day, with permission through the store's affiliate network. This verdict comes from that record alone.
- GENUINE DEAL
- A real low. Good time to buy.
- INFLATED
- Not a real discount. The 'was' price is not what this really sells for.
- TYPICAL PRICE
- Normal price. Fine to buy if you need it.
- NOT ENOUGH DATA
- Too new to judge. Not enough price history yet.
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