Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
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Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack

Key item features

  • UNIVERSAL COMPATIBILITY: 18x20x1 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 19.50" 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
Current price is $34.96
Price when purchased online
  • Free shipping
  • Free 30-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $34.96
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $34.96

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Arrives by Fri, Jul 24
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Sold and shipped by FilterbuyPro Seller
4.588981097279852 stars out of 5, based on 4338 seller reviews(4.6)
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About this item

Product details

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Warranty

Customer ratings & reviews

4.8 out of 5 stars
stars
601 ratings296 reviews
How item rating is calculated
  1. 5 stars87% (523)
  2. 4 stars9% (52)
  3. 3 stars1% (5)
  4. 2 stars0% (2)
  5. 1 star3% (19)

Reviews summary

Pros

  • : These filters fit snugly into the furnace or a/c unit.
  • : Offers discounts for bulk purchases.
  • : Made with good materials and fits well.
  • : Allows sufficient air circulation without resistance.
  • : Easy online purchasing process.
Generated by AI
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Showing 1-3 of 296 reviews

Jun 15, 2026
Teri
Sold and shipped byFilterbuy
5 out of 5 stars review

Verified Purchase

I ordered the wrong size, but that's my bad. I'll get it right next time. I still put them in there. They're working thank you.

Helpful?3HCCGK5J6YBQ144105881
Dec 24, 2025
Jeanne
Sold and shipped byFilterbuy
5 out of 5 stars review

Verified Purchase

Had exactly what I needed and receive in 3 days …. Very pleased!!

Helpful?3HCCGK5J6YBQ144105881
Sep 13, 2025
JM
Sold and shipped byFilterbuy
5 out of 5 stars review

Verified Purchase

Good job, Walmart!

The filters were delivered very quickly, they are competetive with other suppliers.

Helpful?3HCCGK5J6YBQ144105881