Accumulair Platinum 20x25x4 MERV 11 Air Filters (6 Pack)

Supercharged pleated panel filtering media ideally suited for capturing fine airborne allergens.. Uniform pleat shape enhances dust holding capacity and maximizes air flow. Each filter lasts up to 3 months optimally. MERV 11 - Tested and rated according to ASHRAE Standard 52.2. Actual size is 19.5 x 24.5 x 3.75. Nominal size is 20x25x4