Nordic Pure 12x12x1M12+C-6 MERV 12 Plus Carbon AC Furnace Air Filters, Qty-6 Actual Size of Carbon Air Filter: 11 3/4 x 11 3/4 x 3/4 Odor absorbing activated carbon One convenient air filter - MERV 12 pleated plus activated carbon A simple solution for controlling both odors and dust particles Nordic Pure Manufacturer Direct Since 1960 - Made in the USA