17 1/2" x 20" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:17 1/2" x 20" x 1" MERV 11 - Pleated Air Filter 20" x 26 1/2" x

20" x 26 1/2" x 1" MERV 13 - Pleated Air Filter - 6 Pack

19 1/4" x 21 1/2" x 1" MERV 13 - Pleated Air Filter - 6 Pack

16 1/2" x 21 5/8" x 1" Permanent Washable Air Filter - 1 Pack

Actual Dimensions: 8" x 16" x 3/4"

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

17 1/2" x 20" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:17 1/2" x 20" x 1" MERV 11 - Pleated Air Filter 20" x 26 1/2" x17 1 2" x 20" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 17 1 2" x 20" 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, valuable