10" x 18" x 4" MERV 8 - Premium Pleated Air Filter - 6 Pack Standard 15" x 36" x 1"

15" x 36" x 1" Permanent Washable Air Filter - 1 Pack

20" x 32" x 1" Permanent Washable Air Filter - 1 Pack

Actual Dimensions: 24" x 24" x 1 3/4

Actual Dimensions: 16" x 22" x 3/4

10" x 18" x 4" MERV 8 - Premium Pleated Air Filter - 6 Pack Standard 15" x 36" x 1"10" x 18" x 4" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 9 7 8" x 17 7 8" x 3 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