20 1/2" x 26 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 18-125l 14" x 36" x 1"

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

23" x 23" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

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

Actual Dimensions: 23 1/2" x 23 1/2" x 3/4"

10" x 18" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

20 1/2" x 26 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 18-125l 14" x 36" x 1"20 1 2" x 26 1 2" x 1" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 20 1 2" x 26 1 2" 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