Filterbuy 16x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
Filterbuy 16x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
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Filterbuy 16x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack

|3,289 ratings

Key item features

  • UNIVERSAL COMPATIBILITY: 16x20x4 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 15.50" x 19.50" x 3.63"), also compatible with White Rodgers (ACM1000M, ACM1000M-108, FR1000M-108, FR1000M-111)
  • 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 8 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

4.4 out of 5 stars
stars
3,289 ratings1,176 reviews
How item rating is calculated
  1. 5 stars74% (2,446)
  2. 4 stars10% (320)
  3. 3 stars5% (175)
  4. 2 stars4% (120)
  5. 1 star7% (228)
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Showing 1-3 of 1,176 reviews

Oct 4, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

Perfect fit, great price

Had a hard time finding the right size filter for my air return at a decent price. FilterBuy had what I needed at great price and now it's set up on auto order so I don't even have to think about it. Great service, great product, better price.

Review from Filterbuy
Helpful?62U87QDXSZGP717833664
Jun 25, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

Well Made, good price

These are very well made and much more affordable than what is sold at the local retailer. I like that I can put these on a subscription that suits my needs. I have always rented and remembering to change the filters has always been a chore. I want my new home's a/c to work well, timely filter replacement is important for that and this makes it easier to do so.

Review from Filterbuy
Helpful?62U87QDXSZGP717833664
Aug 27, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

Perfect fit

Filter fit perfectly. Former homeowner had never changed put filter, for at least 10 years, and it was so nasty. I cleaned area out as best I could, and once the filter arrived, placed it where it belonged. It fit perfectly and the air is so much fresher!

Review from Filterbuy
Helpful?62U87QDXSZGP717833664
Current price is $116.95
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $116.95
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $116.95

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Arrives by Wed, Oct 21
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Sold and shipped by FilterbuyPro Seller
4.595481670929241 out of 5 stars
4.6 stars out of 5, based on 4692 seller reviews(4.6)
Extended holiday returns
Free Holiday returns until Jan 31