- 18x22x4 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17.50″ x 21.50″ x 3.75″). Please note that you may receive filters with a different label, frame, or media color than what is pictured. Any such alteration is purely cosmetic, meaning your air filter will function exactly as described regardless of the changes to these branded elements
- MERV 11 synthetic media (comparable with MPR 1000 – 1200 & FPR 7) protects homes from pets, allergies, and more by trapping 95% 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
