Filterbuy 18x24x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack
Filterbuy 18x24x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack
Hero image 0 of Filterbuy 18x24x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack, 0 of 8
Visit the Filterbuy Store

Filterbuy 18x24x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack

Key item features

  • UNIVERSAL COMPATIBILITY: 18x24x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 17.38" x 23.38" x 0.75")
  • MERV 11 PERFORMANCE: Protect your home or business from allergens, pets, and more with MERV 11 synthetic media (comparable with MPR 1200 & FPR 7) that captures 95% 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 $41.97
Price when purchased online
  • Free shipping
  • Free 30-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $41.97
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $41.97

How do you want your item?

How do you want your item?
Ships to
Arrives by Fri, Jul 17
|
Sold and shipped by FilterbuyPro Seller
4.58727948003714 stars out of 5, based on 4308 seller reviews(4.6)
Free 30-day returns

About this item

Product details

Specifications

Warranty

Customer ratings & reviews

4.6 out of 5 stars
stars
226 ratings91 reviews
How item rating is calculated
  1. 5 stars81% (183)
  2. 4 stars10% (22)
  3. 3 stars3% (6)
  4. 2 stars1% (2)
  5. 1 star6% (13)
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 91 reviews

Oct 1, 2022
Mman2
5 out of 5 stars review

Seller Verified Purchase

Good, specialty-size filter

Have bought these previously as I need the specialty size for my combination HVAC unit. Work well. Glad to see Walmart carrying these as they are hard to get. Priced well

Review from walmart.ca
Helpful?48G0TG70T3A8843958423
Jul 20, 2025
Walmart customer
5 out of 5 stars review

New FilterBuy product appears to be much stronger!

Pleats in newest filter appear to be much stronger and should perform better than those in the past. I won't have an opportunity to evaluate this until 1st Qtr 2026, since I still have ample inventory from my last FilterBuy.

Review from Filterbuy
Helpful?48G0TG70T3A8843958423
Jan 31, 2024
Walmart customer
5 out of 5 stars review

Perfect Fit

We have a forced hot air furnace in our home and I always know where to get my filters. Filterbuy site is easy to navigate and to make a purchase. I have ordered from other sites in the past and the size was always to spec. Filterbuy filters take into consideration the fact that it needs to fit into the return and are always a perfect fit.

Review from Filterbuy
Helpful?48G0TG70T3A8843958423