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

|9,805 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

4.7 out of 5 stars
stars
9,805 ratings3,413 reviews
How item rating is calculated
  1. 5 stars85% (8,292)
  2. 4 stars7% (699)
  3. 3 stars3% (272)
  4. 2 stars1% (137)
  5. 1 star4% (405)
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Showing 1-3 of 3,413 reviews

Sep 7, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

The filters came more quickly

The filters came more quickly than I expected and I appreciate the quality of the Merv 13 filters. I have 3 cats and 4 adults in my house so we generate a lot of hair and dust. This filter helps a lot! The price isn't too bad for 4 filters. Changing them out once every 3 months instead of every month is a blessing. I just set the reminder on my calendar. I just wish I could get all of the features the Merv 13 features along with the odor control but alas! You cannot have everything I suppose lol!

Review from Filterbuy
Helpful?4N7IR0KVHUJ65389805772
Sep 7, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

Awesome Filter and Recommendation!!!

The 20x23x1 filter fit is perfect. I was using the wrong size, per Tony (AC Tech). Tony(AC Tech) told me the filter size for the AC unit was wrong. The 20x22x1 filter I had inside the AC unit was wrong as well. He told me the right AC filter is 20x23x1 and gave me some tips for maintaining my AC unit as well. I would love for him to come back and give me more unit service tips as a user. In the meantime, I went out and purchased a basic AC service manual. . . . KUDOS to Tony!!!!!!

Review from Filterbuy
Helpful?4N7IR0KVHUJ65389805772
Sep 4, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

I like everything about getting these filters!

The company is great, their responsive and fast, their website help me with all of the details so that I bought the right filter, I get them in the mail, they're made in the USA, and I can consistently get the same filters with the same rating and actually trust them that it's what they say it is. This is not true anywhere else.

Review from Filterbuy
Helpful?4N7IR0KVHUJ65389805772
Current price is $43.99
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $43.99
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One-time purchase $43.99

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Sold and shipped by FilterbuyPro Seller
4.594893617021277 out of 5 stars
4.6 stars out of 5, based on 4700 seller reviews(4.6)
Extended holiday returns
Free Holiday returns until Jan 31