20x20x2 (19-1/2x19-1/2) Fresh Air Activated Carbon Filter MERV 8 4-Pack
> 90% Dust Arrestance Efficiency per ASHRAE 52.2. Cooking Smells & Stale Odors. Vehicle Exhaust & Petroleum Fumes.
Cleaning Compounds, Solvents & Disinfectants. Many Other Unpleasant Odors from Objectionable Sources. Heavy Duty Beverage Board Frame with Water Repellent Adhesive. Moisture Resistant - Pleats Hold Together Even When Wet. No Delaminating, No Excessive Buckling, No Collapsing. Provides Added Strength & Rigidity. Will Not Rack, Warp or Bend Under Most Operating Conditions.