20" x 21 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 20-875w 16" x 21" x 1"

16" x 21" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

Helps Fight

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

Actual Dimensions: 17 1/4" x 21 1/4" x 3/4"

20" x 21 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 20-875w 16" x 21" x 1"20" x 21 3 4" x 1" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 20" x 21 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 electrostatic