13 3/4" x 23 3/4" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 4-inch-air-filters 12 1/8" x 15" x

12 1/8" x 15" x 4" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 21 1/4" x 21 1/2" x 3/4"

23 1/8" x 23 1/8" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

14" x 30" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

13 7/8" x 18 1/8" x 1" MERV 11 - Pleated Air Filter - 6 Pack

13 3/4" x 23 3/4" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 4-inch-air-filters 12 1/8" x 15" x13 3 4" x 23 3 4" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 13 3 4" x 23 3 4" x 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,