Filterbuy 12x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
Filterbuy 12x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
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Filterbuy 12x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack

Key item features

  • UNIVERSAL COMPATIBILITY: 12x20x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 11.50" x 19.50" x 0.75")
  • MERV 11 PERFORMANCE: Protect your home or business from allergens, pets, and more with MERV 11 synthetic media (comparable with MPR 1200 & FPR 7) that captures 95% of dust without restricting air flow
  • LONG-LASTING FILTRATION: Electrostatically charged media with 14 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance)
  • SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures
  • MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality that is trusted by millions of homes
Current price is $49.98
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  • Free 30-day returns
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4.586466165413534 stars out of 5, based on 4123 seller reviews(4.6)
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4.6 out of 5 stars
stars108 ratings38 reviews
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Showing 1-3 of 38 reviews

Jun 26, 2025
Walmart customer
5 out of 5 stars review

12x20x1 merv 11 pleated air filter

I have no idea. The door to the filter is closed tight. I cannot open the filer door. Need to wait for HVAC tech to come over this November. I noticed the package has 6 filters. This should last me 6 years after this November.

Review from Filterbuy
Helpful?4HRKFZLU3Q9V17327765807
Apr 23, 2020
Kenneth J.
5 out of 5 stars review

Timely Best Value

We have four returns (three different sizes) on our HVAC system. Each needs a filter. I checked a lot of websites and local stores for the MERV 11s that I wanted before purchasing a reorder plan with FilterBuy. Most economical plan for us with change every three months and our limited condo storage space was to buy four of each with annual automatic reorder and to order the other four (for the second same size return) at the six month mark each year.

Review from Filterbuy
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Jun 29, 2025
Romana A.
5 out of 5 stars review

It working good

I'm not blowing my nose constantly like before I put the filter in

Review from Filterbuy
Helpful?4HRKFZLU3Q9V17327765807