18x30x1 Air Filter MERV 11 Allergen Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.75 x 29.75 x 0.75 Inches)

18x30x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17.75" x 29.75" x 0.75") 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