16 1/4" x 21 1/4" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:16 1/4" x 21 1/4" x 1" MERV 11 - Pleated Air Filter Actual Dimensions: 19 7/8" x

Actual Dimensions: 19 7/8" x 29 7/8" x 3 3/4"

18" x 22" x 4" MERV 13 - Pleated Air Filter - 6 Pack

18" x 24" x 2" MERV 8 - Premium Pleated Air Filter - 6 Pack

19 3/8" x 23 1/8" x 1" MERV 11 - Pleated Air Filter - 6 Pack

16 1/4" x 21 1/4" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:16 1/4" x 21 1/4" x 1" MERV 11 - Pleated Air Filter Actual Dimensions: 19 7/8" x16 1 4" x 21 1 4" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 16 1 4" x 21 1 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,