Description
16.25×21.25×4 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 16.25″ x 21.25″ x 3.63″)
MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from mold, pollen, and more while trapping 90% 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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