20x25x5,MERV 13,Pleated HVAC AC Furnace Air Filters Replacement for Lennox HCC20-28,2PK This can change depending on the filter size as well as other variable factors for pet owners, allergy-sufferers, households with children, etc..
20x20x5,MERV 12,Pleated HVAC Air Filter Replacements,Collection Cells F100F1020,2PK This can change depending on the filter size as well as other variable factors for pet owners, allergy-sufferers, households with children, etc..
, 6PK Made in the USA. AF MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800 (clean living and dust & pollen). These filters have a MERV 11 rating: Removes dust, pollen, mold, dust mites, pet dander, smoke, smog, and lint.