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neomatrixviper 4.1K Views
Jul 27, 2026 7:23 PM

Filtrete Air Filter 1”, MPR 2500 MERV 14, High Performance Premium Allergen, Ultrafine Particles, Bacteria and Virus Filter, 4-pack $41.99 Various Sizes Free Shipping Costco.com

$42

$52

19% off
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https://www.costco.com/p/-/filtre...?langId=-1

$10 OFF
$10 manufacturer's savings is valid 7/27/26 through 8/23/26. While supplies last.
Limit 10 per member.

2500 MPR and MERV 14 Rating
Designed with Filtrete™ 3-in-1 Technology
Helps Capture Countless Microparticles Such as Pet Dander, Smoke, and Bacteria
Also Captures Large Particles like Lint, Pollen, and Household Dust
These Furnace Filters are Certified Asthma and Allergy-Friendly®
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Deal Details
Community Notes
About the Poster
https://www.costco.com/p/-/filtre...?langId=-1

$10 OFF
$10 manufacturer's savings is valid 7/27/26 through 8/23/26. While supplies last.
Limit 10 per member.

2500 MPR and MERV 14 Rating
Designed with Filtrete™ 3-in-1 Technology
Helps Capture Countless Microparticles Such as Pet Dander, Smoke, and Bacteria
Also Captures Large Particles like Lint, Pollen, and Household Dust
These Furnace Filters are Certified Asthma and Allergy-Friendly®

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7 Comments

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Jul 30, 2026 6:21 PM
639 Comments
Joined Jan 2012
TierAngstJul 30, 2026 6:21 PM
639 Comments
Pretty sure these were 35 in store
Jul 30, 2026 6:32 PM
578 Comments
Joined Nov 2016
LeeJ4041Jul 30, 2026 6:32 PM
578 Comments
great price but merv 14 and 1''? this is going to be so hard for your hvac if your house is dusty, and require frequent replacement
1
Jul 30, 2026 6:58 PM
4.2K Comments
Joined Sep 2006
willygeeJul 30, 2026 6:58 PM
4.2K Comments
Recent amazon deals on filters have been better than these, no?
Aug 1, 2026 3:32 PM
5.3K Comments
Joined Feb 2009
dcmanryanAug 1, 2026 3:32 PM
5.3K Comments
Quote from LeeJ4041 View quoted comment :
great price but merv 14 and 1''? this is going to be so hard for your hvac if your house is dusty, and require frequent replacement
People don't realize their blower motors are air cooled. I've seen a MERV 14 filter take out a blower motor before. If you need more than a MERV 8 buy a dedicated air purifier stand alone unit and let your furnace or ahu actually breathe as most houses lack return air from the get go then people put this garbage in it.
1
Aug 1, 2026 7:24 PM
39 Comments
Joined May 2025
LovelyMoney6799Aug 1, 2026 7:24 PM
39 Comments
Quote from dcmanryan View quoted comment :
People don't realize their blower motors are air cooled. I've seen a MERV 14 filter take out a blower motor before. If you need more than a MERV 8 buy a dedicated air purifier stand alone unit and let your furnace or ahu actually breathe as most houses lack return air from the get go then people put this garbage in it.
I presume you are aware the issue you are referencing has nothing to do with "MERV" Rating but rather "Pressure Drop" caused by the impedance of the filter preventing proper air flow through the filter. Starting with Merv 13, 3M moves to an advanced Plete Feature that increases the surface area for the air to travel through significantly cutting pressure drop and strain on the system so it less than even their Merv 5 and 7 filters. The Merv 14 while higher is till less than those wih much lower ratings. There are plenty of independent studies on the 3M filters showing this....Which is why I go with the Merv 13. A little more expensive, but cuts power bills vs the lower merv but greater pressure drop units.
Aug 2, 2026 7:24 AM
2K Comments
Joined Aug 2007
munkleAug 2, 2026 7:24 AM
2K Comments
Quote from LeeJ4041 View quoted comment :
great price but merv 14 and 1''? this is going to be so hard for your hvac if your house is dusty, and require frequent replacement
Fake news, watch project farms review on these. When dirty the only filters that did better were 2", 4", and the junk see through filters. These have a ton of pleats they filter while letting tons of air through.
1
Aug 2, 2026 7:26 AM
2K Comments
Joined Aug 2007
munkleAug 2, 2026 7:26 AM
2K Comments
Quote from dcmanryan View quoted comment :
People don't realize their blower motors are air cooled. I've seen a MERV 14 filter take out a blower motor before. If you need more than a MERV 8 buy a dedicated air purifier stand alone unit and let your furnace or ahu actually breathe as most houses lack return air from the get go then people put this garbage in it.
People don't realize that they are spreading misinformation (you). Look at the project farm review on these. The actual science says these breathe better than any other filter when dirty except for 2", 4" and the crappy see through filters. You're worse off with any other 1" filter.

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