17 3/4" x 29 3/4" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 17-25w 13" x 21 1/2" x

13" x 21 1/2" x 4" MERV 11 - Pleated Air Filter - 6 Pack

12" x 30" x 2" MERV 11 - Pleated Air Filter - 6 Pack

14" x 18" x 4" MERV 8 - Premium Pleated Air Filter - 6 Pack

11 3/4" x 17 3/4" x 1" MERV 13 - Pleated Air Filter - 6 Pack

20" x 20" x 12" 85% With Header Rigid Filter

17 3/4" x 29 3/4" x 1" MERV 11 - Ultra Allergen Reducing Pleated Air Filter - 6 Pack 17-25w 13" x 21 1/2" x17 3 4" x 29 3 4" x 1" MERV 11 Pleated Air Filter 6 Pack Actual Dimensions: 17 3 4" x 29 3 4" 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,