18" x 24" x 2" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:18" x 24" x 2" MERV 11 - Pleated Air Filter 13 3/4" x 17 3/4"

13 3/4" x 17 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

18 3/4" x 20 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

12" x 36" x 2" Permanent Washable Air Filter - 1 Pack

Actual Dimensions: 13" x 23" x 3/4"

8" x 18" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

18" x 24" x 2" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:18" x 24" x 2" MERV 11 - Pleated Air Filter 13 3/4" x 17 3/4"18" x 24" x 2" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 17 3 8" x 23 3 8" 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