Filterbuy 12x24x1 MERV 11 Allergen Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 12x24x1 MERV 11 Allergen Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
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Filterbuy 12x24x1 MERV 11 Allergen Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)

11.8K ratings

Key item features

  • Precise Dimensions: 12x24x1 replacement air filters for HVAC systems (actual size: 11.50" x 23.50" x 0.75")
  • Allergen Defense: MERV 11 synthetic media traps 95% of dust particles, protecting against pets, allergies, smoke, smog, lint, pollen, mold, and dander
  • Enhanced Air Flow: High-quality construction with electrostatically charged design and 14 pleats per foot ensures efficient air flow and particle capture
  • Durable Design: Lasts 3x longer than fiberglass models; replace every 90 days for optimal performance
  • Easy Installation: Beverage board frames with dual wire backings improve structural integrity and resist extreme temperatures
  • Eco-Friendly Materials: Made with recyclable materials and 100% manufactured domestically
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About this item

Product details

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Customer ratings & reviews

4.7 out of 5 stars
stars
11.8K ratings3,959 reviews
How item rating is calculated
  1. 5 stars85% (10K)
  2. 4 stars8% (937)
  3. 3 stars3% (311)
  4. 2 stars1% (149)
  5. 1 star3% (403)

Reviews summary

Pros

  • : Made with excellent materials and construction.
  • : Captures visible dust and pet hair particles.
  • : Captures snugly into hvac systems.
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Showing 1-3 of 3,959 reviews

Aug 20, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

Affordable and effective

I love these filters. Affordable and effective. It's amazing to see how much they have collected when it's time to change them. The subscription service is great. A little extra savings and a subtle reminder that you forgot to change them. LOL. But I usually notice when it's time if I forget, I find myself sneezing and having itchy eyes in the house. Which always improves once I change them Highly recommend these and Filterbuy

Review from Filterbuy
Helpful?0SH9PYHEIZUZ1577038607
Sep 16, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

My filters came nicely boxed

My filters came nicely boxed and they were in perfect condition. I replaced the same size that was in my air-conditioning vent area and I had a gentleman out to clean my vents and he told me my size is actually probably a 16. 5 so it would be a 16. 5 x 25 by one. Kind of crazy, but the product was perfect.

Review from Filterbuy
Helpful?0SH9PYHEIZUZ1577038607
Sep 3, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

The quality of the cardboard

The quality of the cardboard used to stabilize the filter is far above anything I have bought at the big box stores. . I used to be in the HVAC industry so believe me when I say the cost is very reasonable. I will definitely be a customer for life. Thanks for making such a quality product. .

Review from Filterbuy
Helpful?0SH9PYHEIZUZ1577038607
Current price is $10.97$10.97/in
Price when purchased online
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