13 7/8" x 21 1/8" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:13 7/8" x 21 1/8" x 1" MERV 11 - Pleated Air Filter 20" x 34" x 1"

20" x 34" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

15 1/2" x 30" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

Actual Dimensions: 12 3/4" x 21" x 3/4"

12" x 24" x 6" 85% With Header Rigid Filter

Actual Dimensions: 16 1/2" x 21 3/4" x 3/4"

13 7/8" x 21 1/8" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack MERV 11 - Pleated Air Filter:13 7/8" x 21 1/8" x 1" MERV 11 - Pleated Air Filter 20" x 34" x 1"13 7 8" x 21 1 8" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 13 7 8" x 21 1 8" x 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,