20" x 34" x 4" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:20" x 34" x 4" MERV 11 - Pleated Air Filter 13 3/8" x 13 3/8"

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

Actual Dimensions: 13 1/4" x 29 1/4" x 3/4"

18" x 28" x 1" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 14" x 20" x 3/4

12" x 24" x 2" MERV 4 - Residential Washable Air Filter - 1 Pack

20" x 34" x 4" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:20" x 34" x 4" MERV 11 - Pleated Air Filter 13 3/8" x 13 3/8"20" x 34" x 4" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 19 7 8" x 33 7 8" x 3 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