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Filterbuy 18x22x4 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack
Key item features
- UNIVERSAL COMPATIBILITY: 18x22x4 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 17.50" x 21.50" x 3.63")
- 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 11 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
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Showing 1-3 of 1,168 reviews
Sep 13, 2026
Reviewer name: Customer
5 out of 5 stars
Haven't got replacement yet
I got my filters really quick but they were much smaller than the one I had. The product was 16x 25 x 4. The filters I took out of my ac were also printed that size. The lesson learned is forget what it says on your filter. Look at the filter edge till you find actual size. Big difference. Return was easy. Just waiting on replacements b
Review from Filterbuy
Helpful?6KRH6QP9AZHJ311196511
Jun 8, 2026
Reviewer name: Customer
5 out of 5 stars
I purchased 4 of these
I purchased 4 of these last year but didn't create an acct. I didn't pay close attention but I thought the pleats were evenly spaced. These, that I purchased this year are not. The one that measured range from a1/2" to 1-1/2'. and they are placed in the frame crooked. I have an old flip phone and cannot provide you with pictures nor video. otherwise, a GREAT filter!!
Review from Filterbuy
Helpful?6KRH6QP9AZHJ311196511
Sep 7, 2026
Reviewer name: Customer
5 out of 5 stars
Efficient filter
I purchased these filters because they will remove most of the dust and pollen from the air for my air-conditioning system. Since I live in the northeast, I only use the system during the summer months and really only go through one filter a year. I have the next six years covered. They were a good price.
Review from Filterbuy
Helpful?6KRH6QP9AZHJ311196511
Current price is USD$126.99
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4.594895989706198 out of 5 stars
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