Filterbuy 18x22x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack
Filterbuy 18x22x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack
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Filterbuy 18x22x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack

|20.3K ratings

Key item features

  • UNIVERSAL COMPATIBILITY: 18x22x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 17.75" x 21.75" 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 ratings5,836 reviews
How item rating is calculated
  1. 5 stars87% (17.6K)
  2. 4 stars7% (1,364)
  3. 3 stars2% (393)
  4. 2 stars1% (206)
  5. 1 star3% (664)
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Showing 1-3 of 5,836 reviews

Aug 11, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

I appreciate the the help

After first ordering the wrong size, I called to return them. I was prepared for an additional charge for the return and a higher price for the corrected size. Instead I was told to just donate the incorrect size and a new 6-pack of the corrected size sent immediately and received in 2 days! This was a perfect fit! Now I just have to change the filter in the A/C every other month and I'm set for the year! Thanks bunches!

Review from Filterbuy
Helpful?2GJS9AN2A7FA157908593
Jul 17, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

These are tough!

I wanted to see if I could remove the filter material and mesh from a used merv 8 filter, to use the paperboard frame for another purpose. No way; it was like trying to disassemble a unibody car! No wonder these filters hold their shape so well. They're built like tanks

Review from Filterbuy
Helpful?2GJS9AN2A7FA157908593
Aug 16, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

We decided to filter at

We decided to filter at the cold air returns rather that at the air handler. The goal was to reduce the amount of dust in the house. The 12x12x1 filters fit the returns perfectly. We've noticed no difference in air flow. It's too early to determine if there is less dust. The filters are of high quality. If the change we made in filter location works the way we want, we'll definitely be purchasing more from Filter Buy.

Review from Filterbuy
Helpful?2GJS9AN2A7FA157908593
Current price is $39.98
Price when purchased online
  • Free shipping
  • Free 30-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $39.98
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Save time and stay stocked!
One-time purchase $39.98

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Sold and shipped by FilterbuyPro Seller
4.59310496267018 out of 5 stars
4.59310496267018 stars out of 5, based on 4554 seller reviews(4.6)
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