Air Filters Delivered · www.airfiltersdelivered.com
20x21 5/8x1 Aerostar Air Filter
MERV 8 / 2
5 out of 5 · 1 ratings
$130.62 at Air Filters Delivered right now, from Shopify.
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Reviews
Rated 5 out of 5 by 1 shoppers.
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About this product
A 20 x 21 5/8 x 1 nominal return is one of those odd specs that comes from a custom or semi-custom HVAC installation. This Aerostar measures 20" x 21 5/8" x 1" actual, built to the exact spec without adjustment. MERV 8 covers standard residential filtration: dust, lint, pollen. MERV 11 handles pet households and mild allergy concerns. MERV 13 captures fine particulates including smoke, bacteria, and virus carriers - the recommended grade for households with asthma or chronic respiratory health issues. Pleated synthetic media with an electrostatic charge built into the fibers handles the filtration work. The pleats provide several times the surface area of a flat fiberglass filter at the same nominal size, which extends the service life to a 60-to-90-day window under typical residential conditions. The electrostatic charge catches sub-micron particles where mechanical filtration alone reaches its physical limits. Manufactured in the USA by Con-Air Industries at the Orlando, Florida facility. Cardboard frame, reinforced to maintain shape under blower suction. Custom-spec filters benefit most from dimensional precision because an off-spec filter leaves a gap where unfiltered air bypasses the media, which defeats the purpose of running any MERV grade above the baseline.
- Custom 20x21 5/8x1 sizing ensures precise fit for unique HVAC installations, preventing bypassed air
- MERV 8, 11, and 13 ratings provide tailored filtration for dust, pollen, pet dander, smoke, bacteria, and viruses
- Pleated synthetic media with electrostatic charge captures sub-micron particles for improved filtration efficiency
- Cardboard frame reinforced for shape retention under blower suction, maintaining filter integrity
- Manufactured in the USA for quality assurance and durability
- Nominal Size
- 20 x 21.5 x 8 x 1 inches
- Actual Size
- 20 x 21.5 x 8 x 1 inches
- Media Type
- Pleated synthetic with electrostatic charge
- MERV Ratings
- 8, 11, 13
- Frame Material
- Cardboard, reinforced
- Manufactured in
- USA
Photos, details and ratings from Air Filters Delivered, through Shopify.
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How Sinclair checks, and what the verdicts mean
True Finds records Air Filters Delivered'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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