24" x 26" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack MERV 8 -Pleated Air Filter:24" x 26" x 1" MERV 8 - Premium Pleated Air Filter 12" x 12" x 1"

12" x 12" x 1" Permanent Washable Air Filter - 1 Pack

14" x 14" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

They are interchangeable with 1" disposable filters and can be used again and again

13" x 21 1/2" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

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

24" x 26" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack MERV 8 -Pleated Air Filter:24" x 26" x 1" MERV 8 - Premium Pleated Air Filter 12" x 12" x 1"24" x 26" x 1" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 24" x 26" x 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 charge,