factorydirectfilters.com · www.factorydirectfilters.com
18x18x1 Aerostar Air Filter
MERV 8, 6
4.9 out of 5 · 388 ratings
$45.99 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
An 18x18 nominal return takes a filter that measures 17 1/2" x 17 1/2" x 3/4" actual, and this Aerostar fits that spec. Square 18x18 returns are common in compact residential setups and some smaller air handlers. MERV 8 covers baseline household filtration for dust, pollen, and lint - the standard choice for homes without pets or specific allergy concerns. MERV 11 picks up pet dander, smoke residue, and most common allergens. MERV 13 captures fine particulates including bacteria, smoke from wildfires, and virus-sized droplets. The pleated synthetic media construction gives this filter substantially more capacity than a flat fiberglass throwaway. The electrostatic charge in the fibers catches particles smaller than the physical weave would stop mechanically. Manufactured in the USA by Con-Air Industries, Orlando, Florida. The cardboard frame is reinforced to maintain shape under blower suction - frame collapse is one of the more common failure modes in cheaper filters, and a collapsed frame lets unfiltered air bypass the media entirely. Plan on a 60-to-90-day change interval for MERV 8 and 11 in typical residential use. MERV 13 reaches its pressure-drop limit faster and wants a change closer to every 30 to 60 days under similar conditions.
- 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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