Filterbuy 18x28x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 12-Pack
Filterbuy 18x28x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 12-Pack
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Filterbuy 18x28x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 12-Pack

|20.3K ratings

Key item features

  • UNIVERSAL COMPATIBILITY: 18x28x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 18.00" x 28.00" x 0.75")
  • MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% 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
20.3K ratings5,837 reviews
How item rating is calculated
  1. 5 stars87% (17.6K)
  2. 4 stars7% (1,363)
  3. 3 stars2% (393)
  4. 2 stars1% (207)
  5. 1 star3% (663)
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Showing 1-3 of 5,837 reviews

Jul 14, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

Great find!

My a/c went out a couple weeks ago (when it was 3 million degrees). I asked the repair man about air filters. He told me that the expensive filters tend to not let enough air through. So, I'm thrilled to have found Filterbuy! A great price and seem to be doing their job. Will definitely continue buying them.

Review from Filterbuy
Helpful?1LKQXG7ND7LJ5382767347
Jul 5, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

New filters

I ordered these when our furnace was working. It has now quit and we're getting a new furnace installed tomorrow and I have no idea what size it takes but I'm sure it will be the same as the old one. Can I return these and exchange them for the new size what I find out what it is?

Review from Filterbuy
Helpful?1LKQXG7ND7LJ5382767347
Jul 19, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

Best filters for your furnace

I've been using these filters since they were recommended by Any Hour Supply. I've been using them for 5 years now, these filters have done a better job than anything else on the market! Never any problems, very inexpensive in cost, but the quality is unmatched. We'll use these and only this brand for my air conditioner/Furnace ever more!

Review from Filterbuy
Helpful?1LKQXG7ND7LJ5382767347
Current price is $190.92
Price when purchased online
  • Free shipping
  • Free 30-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $190.92
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $190.92

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Sold and shipped by FilterbuyPro Seller
4.592290748898678 out of 5 stars
4.592290748898678 stars out of 5, based on 4540 seller reviews(4.6)
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