MERV 11 MEDIA FILTER, RATED AT 492 FEET/MINUTE, REMOVES AIRBORN PARTICLES DOWN TO 0.3 MICRON,  EXTRA DEEP 4 1/2 INCH PLEATED FILTER material constructed of a cellulose free hydrophobic polyolefin fibers, call us at 337-652-5623 or email  with your cabinet model and we'll ship out yours filter today