23 1/2" x 24 1/2" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 17-375l 13 1/2" x 17 1/2"

13 1/2" x 17 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

Actual Dimensions: 9" x 23" x 3/4"

Actual Dimensions: 7 1/2" x 11 1/2" x 3/4"

18" x 22" x 1" MERV 11 - Pleated Air Filter - 6 Pack

29 3/4" x 29 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

23 1/2" x 24 1/2" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 17-375l 13 1/2" x 17 1/2"23 1 2" x 24 1 2" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 23 1 2" x 24 1 2" 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,