18" x 36" x 1" Replacement Air and Furnace Filters

18" x 36" x 1" Replacement Air and Furnace Filters are made of 100% Synthetic Media which will not promote mold or bacteria growth. These 1 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 to be changed every 60-90 days depending on levels of air contaminants.
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