16" x 24" x 4" Replacement Air and Furnace Filters

16" x 24" x 4 Replacement Air and Furnace Filters are made of 100% Synthetic Media which will not promote mold or bacteria growth. These 4 inch filters designed with to achieve a low resistance to air flow minimizes energy costs, with higher dust holding and longer life than standard capacity pleats. Designed for commercial buildings, industrial filtration, occupied spaces, to protect occupants from airborne irritants and should be changed every 60-90 days depending on levels of air contaminants.