About this item: 16x20x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 15.50" x 19.50" x 0.75"). MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow. High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models. Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs. All components are manufactured within the United States and designed with recyclable materials. Know more at: www.naizenshop.com