Filterbuy 14x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack
Filterbuy 14x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack
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Filterbuy 14x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack

Key item features

  • UNIVERSAL COMPATIBILITY: 14x20x4 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 13.50" x 19.50" x 3.63")
  • 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
Current price is $44.99
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Sold and shipped by FilterbuyPro Seller
4.585460734257233 stars out of 5, based on 4113 seller reviews(4.6)
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4.3 out of 5 stars
stars23 ratings9 reviews
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Showing 1-3 of 9 reviews

Oct 21, 2019
Walmart customer
5 out of 5 stars review

GREAT

They seem to fit a little tighter than my previous filters, but that turns out to be my benefit; in the unorthodox way I'm using them. Using a thicker filter allows me to step-up the MERV rating without taxing the air-handler, so I was quite pleased that they would hold themselves in place without any modification to the filter holder that was meant to hold a 1" thick filter.

Review from Filterbuy
Helpful?56HWZ366KL1U5385321333
Apr 18, 2025
Walmart customer
5 out of 5 stars review

Fantastic furnace filters

I bought 2 filters. They last a few months, at least. six. they arrived in a timely manner. I'll buy more when these get dirty, if you get everything do. . . :smile:

Review from Filterbuy
Helpful?56HWZ366KL1U5385321333
Mar 13, 2021
Walmart customer
5 out of 5 stars review

Weve used these filters for

Weve used these filters for the past 2 years. They really do the job well. And, the shipping service is supreme!

Review from Filterbuy
Helpful?56HWZ366KL1U5385321333