13 1/2" x 20" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:13 1/2" x 20" x 1" MERV 11 - Pleated Air Filter 11 1/2" x 11 1/2"

11 1/2" x 11 1/2" x 1" MERV 11 - Pleated Air Filter - 6 Pack

Actual Dimensions: 13 7/8" x 35 7/8" x 3 3/4"

13" x 21 3/8" x 1" MERV 11 - Pleated Air Filter - 6 Pack

17" x 26" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

12 1/2" x 20" x 1" MERV 13 - Pleated Air Filter - 6 Pack

13 1/2" x 20" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:13 1/2" x 20" x 1" MERV 11 - Pleated Air Filter 11 1/2" x 11 1/2"13 1 2" x 20" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 13 1 2" x 20" 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, valuable