Carbon
Pleated Air Filter for AC HVAC or Furnace. AF carbon filter, comparable
with MPR 300 / 600 (clean living and dust & pollen). Two-piece
frames are made of beverage board, which stays strong through humidity
and temperatures with wire backed synthetic filtering media for optimal
equipment protection and energy efficiency, these filters should be
changed 60-90 days in periods of high use. These filters have a MERV 8
rating: Removes dust, pollen, mold, dust mites and lint. Made in the
USA.