15 3/4" x 28" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack 25-5l 20" x 21" x 1"

20" x 21" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

19 7/8" x 21 3/8" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

19 1/4" x 22" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

13 1/2" x 24" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

15 3/4" x 28" x 1" MERV 13 - Ultimate Allergen Reducing Pleated Air Filter - 6 Pack 25-5l 20" x 21" x 1"15 3 4" x 28" x 1" MERV 13 Pleated Air Filter 6 Pack Actual Dimensions: 15 3 4" x 28" 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