21 1/2" x 23 5/8" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack MERV 13 - Pleated Air Filter:21 1/2" x 23 5/8" x 1" MERV 13 - Pleated Air Filter 18" x 22" x 1"

18" x 22" x 1" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 11 7/8" x 11 7/8" x 3 3/4"

23 1/2" x 29 1/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

Actual Dimensions: 10" x 33" x 3/4"

Actual Dimensions: 7 1/2" x 23 1/2" x 3/4"

21 1/2" x 23 5/8" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack MERV 13 - Pleated Air Filter:21 1/2" x 23 5/8" x 1" MERV 13 - Pleated Air Filter 18" x 22" x 1"21 1 2" x 23 5 8" x 1" MERV 13 Pleated Air Filter 6 Pack Actual Dimensions: 21 1 2" x 23 5 8" 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