True Blue Synthetic 7 MERV Pleated Air Filter 20 H x 12 W x 1 D in. (Pack of 12)True Blue is a leading manufacturer of furnace filters, air filters, allergy filters, and other air protection accessories and now brings you the Synthetic 7 MERV Pleated Air Filter to prevent fine particle migration that can damage your appliances. True Blue air filters are made from a synthetic material that resists the growth of bacteria, mold, and fungi. They are pleated to offer a greater surface area as compared to other filters available in the