16 3/4" x 21 1/2" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack 35-75w 19 7/8" x 19 7/8"

19 7/8" x 19 7/8" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

19 7/8" x 21 1/2" x 4" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 21 7/8" x 23 7/8" x 3/4"

Actual Dimensions: 17 1/2" x 35" x 3/4"

Actual Dimensions: 17 7/8" x 17 7/8" x 3 3/4"

16 3/4" x 21 1/2" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack 35-75w 19 7/8" x 19 7/8"16 3 4" x 21 1 2" x 1" MERV 13 Pleated Air Filter 6 Pack Actual Dimensions: 16 3 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