Nordic Pure 16x20x1 MERV 14 Pleated AC Furnace Air Filters Plus Carbon, Box of 6 Actual Size of Carbon Air Filter: 15 1/2 by 19 1/2 by -Inch Odor absorbing activated carbon One convenient air filter - MERV 14 pleated plus activated carbon A simple solution for controlling both odors and dust particles Nordic Pure Manufacturer Direct Since 1960-Made in the USA