Hero image 0 of Filterbuy 18x18x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack, 0 of 8
Filterbuy 18x18x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack
Key item features
- UNIVERSAL COMPATIBILITY: 18x18x2 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 17.75" x 1.75")
- 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 10 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
Specs
Current price is USD$46.98
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4.592037575486469 out of 5 stars
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Showing 1-3 of 7,012 reviews
Jul 7, 2026
Reviewer name: Customer
5 out of 5 stars
Great Filter
I have been using Filterbuy filters for numerous years and change them out regularly. I have always been pleased with just how good of a filter they are compared to other filters that do not even compare in quality. The price is very reasonable so that is why I always purchase 12 filters at a time and I received them within 2 days of ordering. I will continue using Filterbuy so I do not have to worry about my filters being great!
Review from Filterbuy
Helpful?5JCGPEH8UASI188214504
Jul 6, 2026
Reviewer name: Customer
5 out of 5 stars
Great filter
The filter is so solid. I previously bought this flimsy filter that bowed immediately and got sucked up into the HVAC unit. After that terrible experience, I had to find a better option. This filter is excellent—well constructed and filtering out inpurities.
Review from Filterbuy
Helpful?5JCGPEH8UASI188214504
Jun 19, 2026
Reviewer name: Customer
5 out of 5 stars
Hopefully Will Fit
We bought these to replace the Filtrate filters. We have typical Florida ceiling vents. The Filtrate are VERY hard to insert. Read these are “smaller” and much easier to insert. We are seniors and do not feel safe climbing up, having to force the Filtrate in. We will begin using the Filterbuy next time we change them in a few months.
Review from Filterbuy
Helpful?5JCGPEH8UASI188214504
