18" x 25" x 2" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 21-625w This washable filter uses a

This washable filter uses a

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18" x 25" x 2" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 21-625w This washable filter uses a18" x 25" x 2" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 17 1 2" x 24 1 2" x 1 3 4" Filtration Group's High Capacity MERV 11 air filter is made of 100% Synthetic Media which will not promote mold or bacteria growth and has the following features: MERV 11 efficiency, UL Classified, LEED point certification, 100% recycled paperboard frame, low resistance to air flow minimizes energy costs, 100% synthetic media is moisture resistant, valuable