20" x 21" x 2" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:20" x 21" x 2" MERV 11 - Pleated Air Filter 19 3/4" x 21 5/8"

19 3/4" x 21 5/8" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

20" x 23" x 4" MERV 8 - Premium Pleated Air Filter - 6 Pack

Actual Dimensions: 12" x 25" x 3/4"

9" x 24" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

Actual Dimensions: 20" x 30" x 1 3/4

20" x 21" x 2" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:20" x 21" x 2" MERV 11 - Pleated Air Filter 19 3/4" x 21 5/8"20" x 21" x 2" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 19 7 8" x 20 7 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