Eco-Aire 24 x 30 x 1 Premium MERV 8 Pleated Air Conditioner Filter, Box of 6 Actual Size: 23 7/8" x 29 7/8" x 3/4" Made in the USA Designed to last up to 60 Days Comparable to the 3M Filtrete Dust and Pollen: Filtrete 600 Captures airborne particles between 3-10 microns in size