3M Ultra Allergen Reduction Deep Pleat 4" Filter, 2-pack (Various Sizes)

Available sizes:
20x25x4
20x20x4
16x20x4
16x25x4

Features:
Various Sizes Available
Reduces Airborne Dust, Allergens, Bacteria and Viruses
Filtrete 4" Filters Help Maintain Airflow in Heating and Cooling Systems
For Residential Use Only
Change Every 6-12 Months