21" x 21" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:21" x 21" x 1" MERV 11 - Pleated Air Filter 24" x 28" x 1"

24" x 28" x 1" MERV 11 - Pleated Air Filter - 6 Pack

20" x 24" x 4" MERV 11 - Pleated Air Filter - 6 Pack

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

Designed for commercial buildings

14" x 27 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

21" x 21" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:21" x 21" x 1" MERV 11 - Pleated Air Filter 24" x 28" x 1"21" x 21" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 20 7 8" x 20 7 8" 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