Filterbuy 19.75x21.5x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack
Filterbuy 19.75x21.5x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack
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Filterbuy 19.75x21.5x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack

|16.7K ratings

Key item features

  • UNIVERSAL COMPATIBILITY: 19.75x21.5x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 19.88" x 21.50" x 0.75")
  • MERV 13 PERFORMANCE: Protect your home or business from germs, bacteria, and more with MERV 13 synthetic media (comparable with MPR 1900 & FPR 10) that captures 98% of dust without restricting air flow
  • LONG-LASTING FILTRATION: Electrostatically charged media with 16 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

4.6 out of 5 stars
stars
16.7K ratings5,925 reviews
How item rating is calculated
  1. 5 stars82% (13.7K)
  2. 4 stars7% (1,250)
  3. 3 stars4% (603)
  4. 2 stars2% (337)
  5. 1 star5% (808)
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Showing 1-3 of 5,925 reviews

Jul 19, 2026
Reviewer name: Customer
Sold byFilterbuy
5 out of 5 stars
5 out of 5 stars review

Great home filters at a great price. . .

Great deal on these filters. We have three rescue cats, one of which I am allergic to. I've noticed less issues since switching to this brand. I change my filters every 45-60 days and noticed the filter went in bright blue and came out a medium gray color.

Review from Filterbuy
Helpful?4N7IR0KVHUJ65389805772
Jun 15, 2026
Reviewer name: Customer
Sold byFilterbuy
5 out of 5 stars
5 out of 5 stars review

Excellent buy

The shipping was quick. The filter seems to be working well. With two old shedding pugs, the air in my house needs all the help it can get. My allergies seem to be better. If they really do last 3 months, then this was a fantastic buy. Only time will tell.

Review from Filterbuy
Helpful?4N7IR0KVHUJ65389805772
Jun 25, 2026
Reviewer name: Customer
Sold byFilterbuy
5 out of 5 stars
5 out of 5 stars review

I am very happy with

I am very happy with my filters. I needed an unusual size. I previously had to buy 3 smaller ones and duct tape them together every 3 months. Your filters came quickly, damage free, and is a much better quality. It took less than 30 seconds to change out and I noticed a difference in my air quality that same day. I bought a year's supply, so I will definitely be buying again next year!

Review from Filterbuy
Helpful?4N7IR0KVHUJ65389805772
Current price is $33.99
Price when purchased online
  • Free shipping
  • Free 30-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $33.99
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $33.99

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Sold and shipped by FilterbuyPro Seller
4.592806394316163 out of 5 stars
4.592806394316163 stars out of 5, based on 4504 seller reviews(4.6)
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