Description
12.5x21x4 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 12.50″ x 21.00″ x 3.63″)
MERV 11 synthetic media (comparable with MPR 1000 – 1200 & FPR 7) protects homes from pets, allergies, and more while trapping 95% of dust particles without impacting air flow
High quality construction features an electrostatically charged design with 8 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
Industrial grade components are 100% manufactured in the United States and designed with recyclable materials
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