factorydirectfilters.com · www.factorydirectfilters.com
20x21x1 Aerostar Air Filter
MERV 8, 6
4.9 out of 5 · 388 ratings
$68.04 at factorydirectfilters.com right now, from Shopify.
Day 1 of 14 toward the first verdict
Sinclair, your free AI shopping companion
I'm checking this price every day. My first verdict comes at day 14, and I can email you the moment it's ready.
True Finds may earn a commission from stores, no cost to you. Sinclair's verdicts are always free and independent.
Price
Sinclair is checking. Day 1 of 14.
The store
factorydirectfilters.com is a True Finds partner store, with prices recorded every day.
Return policyProduct details
Photos and details from the store, through Shopify.
Reviews
Rated 4.9 out of 5 by 388 shoppers.
Sinclair
Email me when the verdict is ready.
About this product
A nominal 20x21x1 return takes a filter at 19 7/8" x 20 7/8" x 3/4" actual. Odd-sized returns like this show up where the original equipment installer used a non-standard grille opening, which is common in custom builds and certain regional HVAC markets. This Aerostar is built to the actual spec without adjustment, so it'll seat properly without forcing or wedging the frame. MERV 8 covers standard household filtration for dust, lint, and pollen. MERV 11 steps up for pet households or homes with mild allergy concerns. MERV 13 captures fine particulates - smoke, bacteria, virus carriers, wildfire particulate - the grade for households with respiratory issues. Pleated synthetic media construction with an electrostatic charge built into the fibers. The pleats give you substantially more surface area than a flat fiberglass filter at the same nominal size, which is why this filter runs 60 to 90 days between changes under typical conditions. The electrostatic charge improves capture in the sub-micron range, where mechanical filtration alone reaches its physical limits. Manufactured in the USA by Con-Air Industries, Orlando, Florida. Cardboard frame, reinforced for shape retention. MERV 13 in this depth wants a 30-to-60-day change interval because higher filtration grades load up faster than MERV 8 or 11.
- 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
True Finds 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.
Join True Finds, free
Sinclair verified real deals and early access to new features.
We will never sell your personal information.