13 1/4" x 21 1/2" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack MERV 13 - Pleated Air Filter:13 1/4" x 21 1/2" x 1" MERV 13 - Pleated Air Filter 24" x 24" x 12"

24" x 24" x 12" 65% No Header Rigid Filter

Actual Dimensions: 16 1/4" x 21 1/2" x 3 3/4"

24" x 24" x 12" 85% No Header Rigid Filter

Actual Dimensions: 19 3/4" x 21 3/4" x 3/4"

19 7/8" x 21 1/2" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

13 1/4" x 21 1/2" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack MERV 13 - Pleated Air Filter:13 1/4" x 21 1/2" x 1" MERV 13 - Pleated Air Filter 24" x 24" x 12"13 1 4" x 21 1 2" x 1" MERV 13 Pleated Air Filter 6 Pack Actual Dimensions: 13 1 4" x 21 1 2" 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