Filtrete 20x20x1 HVAC Furnace Air Filter, MPR 1900 MERV 13, Premium Allergen, Bacteria and Virus, 1 Filter
Filtrete 20x20x1 HVAC Furnace Air Filter, MPR 1900 MERV 13, Premium Allergen, Bacteria and Virus, 1 Filter
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Filtrete 20x20x1 HVAC Furnace Air Filter, MPR 1900 MERV 13, Premium Allergen, Bacteria and Virus, 1 Filter

4.8 stars out of 651 reviews
(4.8)|
651 ratings

Key item features

  • Premium Filtration: This 20x20x1 HVAC furnace air filter, with an MPR 1900 and MERV 13 rating, captures microparticles like bacteria, viruses, pet dander, and smoke, alongside larger particles such as mold spores, pollen, lint, and household dust.
  • Enhanced Airflow: Designed with exclusive Filtrete 3-in-1 technology, this filter offers superior airflow compared to other residential MERV 13 filters, ensuring cleaner air without straining your HVAC system.
  • Health Certified: The filter is CERTIFIED asthma and allergy-friendly, effectively capturing allergens to contribute to a healthier home environment.
  • Versatile Application: Suitable for use in furnaces, air conditioners, heating systems, and general HVAC systems, providing broad compatibility for home air purification.
  • Maintenance Reminder: The Filtrete Smart App (iOS or Android) allows users to set 30, 60, or 90-day reminders for filter replacement, ensuring optimal performance.
  • Optimal Performance: For best results and system efficiency, it is recommended to change the pleated filter at least once every 90 days.
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Current price is $20.99
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Customer ratings & reviews

4.8 out of 5 stars
stars651 ratings602 reviews
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Reviews summary

Pros

  • : Captures allergens and reduces symptoms.
  • : Suitable for cleaning home air and reducing dust.

Neutral

  • : Offers high-end quality, but can be pricey for some users.
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Showing 1-3 of 602 reviews

Mar 18, 2026
S
Top Reviewer
Item details
Size: 20 in x 20 in x 1 in
5 out of 5 stars review

Verified Purchase

Great for combining with a box fan

I bought this to tape to a box fan. It works great as a air purifier lol.

Helpful?4SWIO0A00OV623139994
Apr 9, 2026
ILUVBKK
Top Reviewer
Item details
Size: 20 in x 20 in x 1 in
5 out of 5 stars review

Verified Purchase

always a high quality filter and better prices at Walmart then other big box stores..

Helpful?4SWIO0A00OV623139994
Jul 11, 2025
HOTB
5 out of 5 stars review

I'm pleasantly pleased

I've used this particular filter since before I replaced my heat pump more than 18 years ago. And I must say that I'm fully satisfied with this product. I'm a retired HVAC/r technician What got me turned on to this product was when I was working with the local government more than 25 years ago when this was not available to the local public. Now I Will admit there's been times that I've gone more than 3 months whereas I would clean (brush off the dander and whatnot) to the life of the filter. Still, this filter preformed like a champ. I do my by-yearly inspection and for all this time my air handler doesn't show its age.

Review from filtrete.com
Helpful?4SWIO0A00OV623139994