20" x 22 1/4" x 4" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:20" x 22 1/4" x 4" MERV 11 - Pleated Air Filter Actual Dimensions: 16 7/8" x

Actual Dimensions: 16 7/8" x 21 7/8" x 3 3/4"

Actual Dimensions: 9" x 13" x 3/4"

20" x 20" x 12" 65% With Header Rigid Filter - 1 Pack

Actual Dimensions: 15 3/4" x 24 3/4" x 3/4"

Actual Dimensions: 17 7/8" x 19 7/8" x 3 3/4"

20" x 22 1/4" x 4" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:20" x 22 1/4" x 4" MERV 11 - Pleated Air Filter Actual Dimensions: 16 7/8" x20" x 22 1 4" x 4" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 19 7 8" x 22 1 4" x 3 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,