Nordic Pure 20x24x1 MERV 7 Plus Carbon AC Furnace Air Filters, Qty 6 Actual Size of Carbon Air Filter: 19-1/2 x 23-7/16 x 3/4 Odor absorbing activated carbon One convenient air filter - MERV 7 pleated plus activated carbon A simple solution for controlling both odors and dust particles Nordic Pure Manufacturer Direct Since 1960 - Made in the USA