Filterbuy 18x24x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
Filterbuy 18x24x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
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Filterbuy 18x24x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-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 $47.95
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4.585503685503686 stars out of 5, based on 4070 seller reviews(4.6)
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4.5 out of 5 stars
stars236 ratings98 reviews
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Showing 1-3 of 98 reviews

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?5TAPKLC4795Y202640224
May 6, 2025
paul c.
5 out of 5 stars review

Filters

They fit great and they are keeping our new AC working great.

Review from filterbuy.com
Helpful?5TAPKLC4795Y202640224
Jan 23, 2025
Earston S.
5 out of 5 stars review

Excellent product and shipping

Excellent product and shipping

Review from filterbuy.com
Helpful?5TAPKLC4795Y202640224