Nordic Pure 16x25x5L1M15+C-1 Lennox X6670 Replacement MERV 15 Plus Carbon AC Furnace Air Filters, Qty 1 Actual Size of Carbon Air Filter: 15 3/4 X 24 3/4 X 4 3/8 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