20" x 23" x 4" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:20" x 23" x 4" MERV 11 - Pleated Air Filter 16" x 20" x 1"

16" x 20" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

18" x 18" x 1" Permanent Washable Air Filter - 1 Pack

Actual Dimensions: 17" x 26" x 3/4"

Actual Dimensions: 13 1/2" x 24" x 3/4"

Actual Dimensions: 15" x 23" x 3/4"

20" x 23" x 4" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:20" x 23" x 4" MERV 11 - Pleated Air Filter 16" x 20" x 1"20" x 23" x 4" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 19 7 8" x 22 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