10" x 14" x 2" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 33w 21" x 21" x 1"

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

Actual Dimensions: 13 7/8" x 23 7/8" x 3 3/4"

Compact design allows minimum restriction while achieving MERV 13 efficiency

Actual Dimensions: 20 1/2" x 26" x 3/4"

10" x 14" x 2" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 33w 21" x 21" x 1"10" x 14" x 2" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 9 7 8" x 13 7 8" x 1 3 4" Filtration Group's High Capacity MERV 11 air filter is made of 100% Synthetic Media which will not promote mold or bacteria growth and has the following features: MERV 11 efficiency, UL Classified, LEED point certification, 100% recycled paperboard frame, low resistance to air flow minimizes energy costs, 100% synthetic media is moisture resistant, valuable