20" x 36" x 2" MERV 8 - Premium Pleated Air Filter - 6 Pack MERV 8 -Pleated Air Filter:20" x 36" x 2" MERV 8 - Premium Pleated Air Filter 25" x 25" x 4"

25" x 25" x 4" MERV 11 - Pleated Air Filter - 6 Pack

Each filter lasts up to one month and should be changed and disposed of regularly

12" x 24" x 6" 95% With Header Rigid Filter

20" x 24" x 12" 85% No Header Rigid Filter

12" x 16" x 2" MERV 8 - Premium Pleated Air Filter - 6 Pack

20" x 36" x 2" MERV 8 - Premium Pleated Air Filter - 6 Pack MERV 8 -Pleated Air Filter:20" x 36" x 2" MERV 8 - Premium Pleated Air Filter 25" x 25" x 4"20" x 36" x 2" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 19 7 8" x 35 7 8" x 1 3 4" Filtration Group's pleated air filter is made of 100% Synthetic Media which will not promote mold or bacteria growth and has the following features: MERV 8 efficiency, UL Classified, LEED point certification, 100% recycled paperboard frame, low resistance to air flow minimizes energy costs, 100% synthetic media is moisture resistant, no electrostatic