Filtrete 303-4 Air Filter, 25 in L, 20 in W, 5 MERV, 300 um MPR, Cardboard Frame

Usually ships in 3-8 business days.

You run a tight ship at home, from floor to ceiling and everywhere in between. Unfortunately ordinary home non-electrostatic air filters aren't super effective at capturing unwanted particles. Good News: The unique design of the electrostatically charged Filtrete pollen air filter attracts and traps more particles from your air through your heating and cooling system, making quality control a breeze. With each cycle through the filter, your indoor air becomes a little bit cleaner.