17 3/8" x 23 3/8" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:17 3/8" x 23 3/8" x 1" MERV 11 - Pleated Air Filter 21" x 27" x 1"

21" x 27" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

10" x 10" x 4" MERV 11 - Pleated Air Filter - 6 Pack

23 1/2" x 35 1/2" x 1" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 19 5/8" x 29 5/8" x 3/4"

20" x 21 1/2" x 4" MERV 13 - Pleated Air Filter - 6 Pack

17 3/8" x 23 3/8" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:17 3/8" x 23 3/8" x 1" MERV 11 - Pleated Air Filter 21" x 27" x 1"17 3 8" x 23 3 8" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 17 3 8" x 23 3 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,