23 1/2" x 27 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 30l 20" x 20" x 2"

20" x 20" x 2" Permanent Washable Air Filter - 1 Pack

14" x 20" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

These quality filters are built to last a lifetime

21 1/4" x 23 1/4" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

23 1/2" x 27 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 30l 20" x 20" x 2"23 1 2" x 27 3 4" x 1" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 23 1 2" x 27 3 4" 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