Filterbuy 17.5x21.5x1 Air Filter MERV 11 Superior Pet & Allergy Defense (12-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement (Actual Size: 17.50 x 21.50 x 0.75)
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$165.96
Product price and availability are accurate as of June 15, 2026 at 1:52pm 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: 17.5x21.5x1 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 21.50" 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 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 best results) SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform basic cardboard designs by improving durability 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 you can trust