Filtrete 12x20x1 Air Filter MPR 1000 MERV 11 Allergen Pet Dander 4Pk

New sealed 4-pack of Filtrete 12x20x1 inch HVAC furnace air filters by 3M. Rated MPR 1000 / MERV 11, designed to capture allergens and pet dander, plus pollen, dust mites, mold spores, smoke, and household odors. Each filter uses Filtrete 3-in-1 technology to trap fine microparticles while maintaining strong airflow, helping protect your HVAC system from overworking. Independently tested to remove at least 95% of pollen, 92.5% of dust mite allergens, 85% of cat allergen particles, and 40% of microparticles (0.3-1 microns). AAFA Asthma & Allergy Friendly certified. Actual filter dimensions: 11-11/16 x 19-11/16 x 13/16 inches. Recommended to replace every 3 months for optimal performance. This is a brand new, factory sealed pack of 4 filters, never opened or used. Great for furnaces, central air conditioners, and whole-home HVAC systems. Ships fast and secure.