16.375x21.5x1 MERV 11 Air Filter, 4 Count, ACTUAL SIZE (16.50 x 21.50 x 0.75), HVAC, Air Conditioning & Furnace Filter for Dust, Pet Dander, Smoke & Allergies (MPR 1200 / FPR 7), Made in USA

HIGH-EFFICIENCY MERV 11 (MPR 1200 / FPR 7) FILTRATION: Traps up to 95% of airborne particles such as dust, pollen, mold spores, pet dander, and smoke to improve indoor air quality and reduce allergy triggers in your home or office. OPTIMIZED AIRFLOW DESIGN: Electrostatically charged synthetic media captures fine particles without restricting air flow—helping maintain HVAC efficiency and extending system life. DURABLE, PLEATED CONSTRUCTION: Sturdy beverage board frame with wire backing resists humidity and temperature changes. The pleated design offers more surface area for longer-lasting filtration and fewer replacements.