11 1/2" x 29" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack MERV 13 - Pleated Air Filter:11 1/2" x 29" x 1" MERV 13 - Pleated Air Filter 20" x 32" x 4"

20" x 32" x 4" MERV 8 - Premium Pleated Air Filter - 6 Pack

9" x 11" x 1" MERV 13 - Pleated Air Filter - 6 Pack

16 3/8" x 21 1/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

Change Frequency:

21 1/2" x 34 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

11 1/2" x 29" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack MERV 13 - Pleated Air Filter:11 1/2" x 29" x 1" MERV 13 - Pleated Air Filter 20" x 32" x 4"11 1 2" x 29" x 1" MERV 13 Pleated Air Filter 6 Pack Actual Dimensions: 11 1 2" x 29" x 3 4" Filtration Group's High Capacity MERV 13 air filter is made of 100% Synthetic Media which will not promote mold or bacteria growth and has the following features: MERV 13 Efficiency, LEED compliant, High Efficiency in 2" depth, Advanced media incorporating both charged fibers and traditional mechanical principles, 100% recycled paperboard frame, Easy