Pamlico Air 18x18x1 8 Pleated Furnace Air Filters. Case of 12. Actual Size: 17-3/4 x 17-3/4 x 3/4

: 18x18x1 | : 17.75" x 17.75" x .75" 18x18x1 : 8, 600, 5. Captures 90% of airborne particles without inhibiting air flow. Traps particles such as dust, mold spores, pollen, lint, pet dander, debris, hair. : 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 system. : 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. in the . Suggested to replace at least every 3 months for optimal performance.