Filterbuy 20x21x1 Air Filter MERV 13 Optimal Smoke & Allergy Defense (5-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 20.50 x 0.75)
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$115.95
Product price and availability are accurate as of January 27, 2026 at 3:32am and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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Features
UNIVERSAL COMPATIBILITY: 20x21x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 19.50" x 20.50" x 0.75") MERV 13 PERFORMANCE: Protect your home or business from germs, bacteria, and more with MERV 13 synthetic media (comparable with MPR 1900 & FPR 10) that captures 98% of dust without restricting air flow LONG-LASTING FILTRATION: Electrostatically charged media with 16 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