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

|13.1K ratings
Filterbuy 20x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-PackFilterbuy 20x20x1 MERV 11 Pleated HVAC AC Furnace Air Filters 6 PackFilterbuy 20x20x1 MERV 11 Pleated HVAC AC Furnace Air Filters 2 PackFilterbuy 20x20x1 MERV 11 Pleated HVAC AC Furnace Air Filters 4 PackFilterbuy 20x20x1 MERV 11 Pleated HVAC AC Furnace Air Filters 1 PackFilterbuy 20x20x1 MERV 11 Pleated HVAC AC Furnace Air Filters 5 PackFilterbuy 20x20x1 MERV 11 Allergen Defense Pleated HVAC AC Furnace Air Filters 3 PackFilterbuy 20x20x1 MERV 11 Pleated HVAC AC Furnace Air Filters 12 Pack
Count Per Pack6

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

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Customer ratings & reviews

4.7 out of 5 stars
stars
13.1K ratings5,096 reviews
How item rating is calculated
  1. 5 stars85% (11.1K)
  2. 4 stars8% (1,053)
  3. 3 stars3% (329)
  4. 2 stars1% (161)
  5. 1 star3% (440)
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Showing 1-3 of 5,096 reviews

Sep 20, 2026
Reviewer name: Jerry
Item details
Count per pack: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

FILTERBUY a less expensive alternative

This FILTERBUY brand filter is MERV rated the same as the FILTRETE brand I have been using but costs about 1/2 the price. They look very similar, have re-enforced pleats, and are rated for allergen removal. I would recommend them for your HVAC system.

Helpful?1ZEAVZ8YGG8X106589621
Aug 12, 2026
Reviewer name: Sabella
Top Reviewer
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

A Necessity For Dusty Climates

It fit my HVAC-AC perfectly and easily, and was easy to install. I could tell the difference right away. Within a relatively short time, it did exactly what it said it would do -- it cleaned the air of the muck and gunk and dust. And how did I know? I quit sneezing!

Helpful?1ZEAVZ8YGG8X106589621
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?1ZEAVZ8YGG8X106589621
Current price is $47.94
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Sold and shipped by FilterbuyPro Seller
4.594623889009322 out of 5 stars
4.594623889009322 stars out of 5, based on 4613 seller reviews(4.6)
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