20x25x1 air filter MERV 11
20x25x1 air filter for your air conditioner, furnace or HVAC system. High efficiency filtration with low airflow resistance. This air filter is MERV 11 rated and captures microscopic airborne particles, odors, pet dander, allergens, dust, lint, mold, dust mites and more. Easy installation and affordable. For best results, it is recommended to replace the filter every 60 to 90 days, but during peak summer and winter months, it is recommended to increase the frequency to 30 days.