Filterbuy 20x20x1 MERV 11 Pleated HVAC AC Furnace Air Filter 6-Pack for Allergy Defense
Filterbuy 20x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
Hero image 0 of Filterbuy 20x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack, 0 of 8
Visit the Filterbuy Store

Filterbuy 20x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack

20.9K ratings

Key item features

  • UNIVERSAL COMPATIBILITY: 20x20x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 19.50" 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

About this item

Product details

Specifications

Warranty

Customer ratings & reviews

4.6 out of 5 stars
stars
20.9K ratings7,119 reviews
How item rating is calculated
  1. 5 stars82% (17.2K)
  2. 4 stars8% (1,779)
  3. 3 stars3% (689)
  4. 2 stars2% (384)
  5. 1 star4% (902)

Reviews summary

Pros

  • : Offers quality filters at a reasonable cost.
  • : Made of durable materials and effectively capture impurities.
  • : Fits well in air intake vents.
Generated by AI
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 7,119 reviews

Mar 23, 2026
Reviewer name: patricia
Sold and shipped byFilterbuy
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

less expensive and better

This is my second purchase of this item. I had in the past always shopped for the highest MERV I could find but was advised by my A/C Maintenance company that was not the best idea because the higher MERV doesn't allow the air to flow through as easily causing the A/C to have to work harder SO, I switched to this lower MERV saving myself some money without sacrificing quality..win/win

Helpful?6N5JQQJ6R3K2106589621
May 10, 2026
Reviewer name: Marcia
Sold and shipped byFilterbuy
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

As a senior on a fixed income I would recommend these as the quality is excellent and the price even better.

Helpful?6N5JQQJ6R3K2106589621
Mar 26, 2026
Reviewer name: Turkey
Sold and shipped byFilterbuy
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

it's difficult to remember the correct filter size when I'm shopping so I had the filters delivered.

Helpful?6N5JQQJ6R3K2106589621
Current price is $47.94
Price when purchased online
  • Free shipping
  • Free 30-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $47.94
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $47.94

How do you want your item?

How do you want your item?
Ships to
Arrives by Tue, Aug 18
|
Sold and shipped by FilterbuyPro Seller
4.590101237345332 out of 5 stars
4.590101237345332 stars out of 5, based on 4445 seller reviews(4.6)
Free 30-day returns