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expiredMeowssi | Staff posted Feb 27, 2025 07:30 PM

Item 1 of 4

expiredMeowssi | Staff posted Feb 27, 2025 07:30 PM

4-Pack Aerostar 20" x 20" x 1" MERV 13 Pleated Air Filter

$20

$46

56% off

Amazon

31 Comments 15,375 Views

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Amazon has 4-Pack Aerostar 20" x 20" x 1" MERV 13 Pleated Air Filter on sale for $20.38. Shipping is free w/ Prime or on $35+ orders.

Walmart also has 4-Pack Aerostar 20" x 20" x 1" MERV 13 Pleated Air Filter on sale for $20.38. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

Thanks to Deal Hunter Meowssi for finding this deal.

Features:

Nominal: 20 x 20 x 1, Size: 19 3/4"x19 3/4"x3/4" 20x20x1, AC Furnace Air Filter
Comparable to 3M Filtrete MPR 1500 to 1900 Ultimate Allergen Defense
Comparable to Honeywell Allergen Elite FPR 10
Fights lint, dust mites, mold spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria.
Change frequency 60-90 days.

Editor's Notes

Written by ValPal2011 | Staff

This product is rated 4.5 out of 5 stars based on over 560 Amazon customer reviews.
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by Meowssi | Staff

Nominal: 20 x 20 x 1, Size: 19 3/4"x19 3/4"x3/4" 20x20x1, AC Furnace Air Filter
Comparable to 3M Filtrete MPR 1500 to 1900 Ultimate Allergen Defense
Comparable to Honeywell Allergen Elite FPR 10
Fights lint, dust mites, mold spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria.
Change frequency 60-90 days.

Editor's Notes

Written by ValPal2011 | Staff

This product is rated 4.5 out of 5 stars based on over 560 Amazon customer reviews.
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by Meowssi | Staff

Deal Score

+23

Visit Amazon

Price Intelligence

Model: Aerostar 20x20x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 19 3/4" x 19 3/4" x 3/4")

Current Prices

Sort: Lowest to Highest | Last Updated 7/29/2025, 03:32 AM

Sold By	Sale Price
Amazon	$31.95

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Top Comments

Nintendo1474

665 Posts

132 Reputation

Oh boy, not this again.

They compensate for the more restrictive filter material by using pleats. The lower MERV filters are flatter. More surface area means more paths for the air to go through. It's not exactly the same, but it's not gonna kill your fan unless you don't replace it when it's clogged.

a2bondfn

1124 Posts

1190 Reputation

Never have I seen the SD experience quite described so clearly

Return0fTheKing

456 Posts

92 Reputation

Are either of you previous two comments HVAC specialists? Trying to figure out which stranger to believe

30 Comments

slickaroon

Feb 27, 2025 07:45 PM

553 Posts

Joined Feb 2016

Feb 27, 2025 07:45 PM

slickaroonFeb 27, 2025 07:45 PM

553 Posts

Great price for merv 13. Thanks!

JayD3014

Feb 27, 2025 11:33 PM

198 Posts

Joined Mar 2015

Feb 27, 2025 11:33 PM

JayD3014Feb 27, 2025 11:33 PM

198 Posts

Super cheap for MERV 13. Seems to be a legit brand, though not the best.

pioneer732

Feb 28, 2025 05:04 AM

40 Posts

Joined Nov 2010

Feb 28, 2025 05:04 AM

pioneer732Feb 28, 2025 05:04 AM

40 Posts

Our community has rated this post as helpful. If you agree, why not thank pioneer732

Do not buy these if you're system wasn't designed for high Merv filters… you really only need 5-6 if you have older equipment. Better air flow and machine doesn't have to work as hard.

Nintendo1474

Feb 28, 2025 05:38 AM

665 Posts

Joined Jul 2017

Feb 28, 2025 05:38 AM

Nintendo1474Feb 28, 2025 05:38 AM

665 Posts

Our community has rated this post as helpful. If you agree, why not thank Nintendo1474

Quote from pioneer732

Do not buy these if you're system wasn't designed for high Merv filters… you really only need 5-6 if you have older equipment. Better air flow and machine doesn't have to work as hard.

Last edited by Nintendo1474 February 28, 2025 at 07:21 AM.

Return0fTheKing

Feb 28, 2025 10:05 AM

456 Posts

Joined Nov 2004

Feb 28, 2025 10:05 AM

Return0fTheKingFeb 28, 2025 10:05 AM

456 Posts

Are either of you previous two comments HVAC specialists? Trying to figure out which stranger to believe

a2bondfn

Pro

Feb 28, 2025 10:13 AM

1,124 Posts

Joined Dec 2009

Feb 28, 2025 10:13 AM

a2bondfn

Pro

Feb 28, 2025 10:13 AM

1,124 Posts

Quote from Return0fTheKing

Are either of you previous two comments HVAC specialists? Trying to figure out which stranger to believe

Never have I seen the SD experience quite described so clearly

biggzzz7

Feb 28, 2025 12:39 PM

41 Posts

Joined Apr 2011

Feb 28, 2025 12:39 PM

biggzzz7Feb 28, 2025 12:39 PM

41 Posts

Thanks, going to give these a shot

Sugartoes

Feb 28, 2025 01:19 PM

1,419 Posts

Joined Jan 2018

Feb 28, 2025 01:19 PM

SugartoesFeb 28, 2025 01:19 PM

1,419 Posts

Quote from Return0fTheKing

Are either of you previous two comments HVAC specialists? Trying to figure out which stranger to believe

lol. I'm going with the first comment. Not all merv13 filters have way more pleats like the filtrete ones. If your system is older, I would go with merv 8 or lower or filtrete brand merv 13.

UniqueAppliance567

Feb 28, 2025 01:20 PM

8 Posts

Joined Jul 2021

Feb 28, 2025 01:20 PM

UniqueAppliance567Feb 28, 2025 01:20 PM

8 Posts

Project Farm on YouTube did a review on all of these filters and a good quality 3M or Honeywell does a better job of filtration along with less strain on the HVAC system. Most of the cheaper ones only do a great job of putting a lower strain on the HVAC system. Not much in terms of particle filtration.

tunnie

Feb 28, 2025 01:32 PM

1,919 Posts

Joined Aug 2005

Feb 28, 2025 01:32 PM

tunnieFeb 28, 2025 01:32 PM

1,919 Posts

Our community has rated this post as helpful. If you agree, why not thank tunnie

Quote from Return0fTheKing

Are either of you previous two comments HVAC specialists? Trying to figure out which stranger to believe

Believe the first, I had a 2018 unit put a brand new Merv 13; I started to get icing. Thought it was my unit. Had a bunch of techs come in they all said replace the unit. One finally said put a Merv 8 that one is too restrictive. I did and boom. Worked fine, no icing. I'm still using the same HVAC system now. Yes, I think newer blowers can handle merv13+ no issues but I'm sure it still puts some level of restriction on the airflow meaning the unit will have to work more if not harder.

Rontron

Feb 28, 2025 01:40 PM

1,540 Posts

Joined Apr 2016

Feb 28, 2025 01:40 PM

RontronFeb 28, 2025 01:40 PM

1,540 Posts

Our community has rated this post as helpful. If you agree, why not thank Rontron

Great for sticking against 20" box fans

BrekkFU

Feb 28, 2025 01:52 PM

72 Posts

Joined Dec 2007

Feb 28, 2025 01:52 PM

BrekkFUFeb 28, 2025 01:52 PM

72 Posts

"usually ships within 1-2 months"

Big oof!

v0vax

Feb 28, 2025 01:53 PM

1,230 Posts

Joined Jun 2006

Feb 28, 2025 01:53 PM

v0vaxFeb 28, 2025 01:53 PM

1,230 Posts

Anyone see any deals on 20x20x20x4?

UniquePenguin974

Feb 28, 2025 02:13 PM

7 Posts

Joined Jun 2021

Feb 28, 2025 02:13 PM

UniquePenguin974Feb 28, 2025 02:13 PM

7 Posts

Good deal. Thanks.

erishun

Feb 28, 2025 02:16 PM

2,890 Posts

Joined Dec 2007

Feb 28, 2025 02:16 PM

erishunFeb 28, 2025 02:16 PM

2,890 Posts

Quote from Rontron

Great for sticking against 20" box fans

you can use all 4 and build a Corsi-Rosenthal Box, but 2" are better as the filters end up being "structural".

good for emergency situations (like smoke from a wildfire) https://www.reddit.com/r/Spokane/...box_guide/

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Home & Home Improvement Storage & Cleaning Building & Remodeling Supplies Free Shipping with Prime Online Only Amazon

Rating:	(4.5 out of 5 stars)
Reviews:	564 Amazon Reviews
Manufacturer:	Filtration Group
Model Number:	20x20x1 Merv 13 4-Pack
Product SKU:	B07YYKNY4N
UPC:	192212058273
ASIN:	B07YYKNY4N
Brand:	Aerostar
Item Dimensions LxWxH:	19.75 x 19.75 x 0.75 inches
Item Weight:	2.49 pounds
Item model number:	20x20x1 Merv 13 4-Pack
Manufacturer:	Filtration Group

4-Pack Aerostar 20" x 20" x 1" MERV 13 Pleated Air Filter

$20

$46

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