Mann+Hummel 18x20x1 MERV 13 (FPR 10) Pleated HVAC AC Furnace Air Filters. 6 Pack. (Exact Size: 17.5 x 19.5 x 0.75 Inches)

ACTUAL MEASUREMENTS: 17-1/2 x 19-1/2 x 3/4 | NOMINAL SIZE: 18 x 20 x 1 18 x 20 x 1 FILTRATION LEVEL RATING: MERV 13, MPR 1900-2200, FPR 10. Filters 98% of airborne particles & pollutants. Captures microscopic particles such as bacteria, virus carriers, allergens, dust, mold spores, pollen, lint, pet dander. IMPROVE AIR QUALITY: Our air filters are made using an advanced synthetic media pleated technology that offers more air coverage, enhance particle capture performance and helps extends the life of your furnace, air conditioner, or HVAC system. STURDY, DURABLE CONTRUCTION: Constructed from a two-piece frame provides rigidity and durability. Electrostatically charged pleats captures more harmful particles and prolongs the products lifespan by up to 3 times over fiberglass filters. Industrial-grade dual side beverage board frames outperforms standard one-sided cardboard designs. MADE IN USA. Suggested to replace at least every 3 months for optimal performance.