Actual Size: 19-1/2 x 19-1/2 x 3-3/4. Case of 6. Pamlico Air 20x20x4 MERV 8 Pleated AC Furnace Air Filters

Suggested to replace at least every 3 months for optimal performance.. MANUFACTURED in the USA. Industrial-grade dual side beverage board frames outperforms standard one-sided cardboard designs. Electrostatically charged pleats captures more harmful particles and prolongs the products lifespan by up to 3 times over fiberglass filters. HIGH high-grade CONTRUCTION: Constructed from a two-piece frame provides rigidity and durability. ENHANCED AIR FILTRATION: Our air filters are made using an advanced pleated technology that offers more air coverage, improved particle capture performance and helps extends the life of your furnace, air conditioner, or HVAC system. Traps particles such as dust, mold spores, pollen, lint, pet dander, debris, hair. Captures 90% of airborne particles without inhibiting air flow. 20x20x4 FILTER PERFORMANCE RATING: MERV 8, MPR 600, FPR 5. NOMINAL SIZE: 20x20x4 | EXACT DIMENSIONS: 19.5" x 19.5" x 3.75" | Does not replace 5" or 4-3/8" depth filters