27 1/2" x 29 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack MERV 8 -Pleated Air Filter:27 1/2" x 29 1/2" x 1" MERV 8 - Premium Pleated Air Filter 21" x 21" x 1"

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

Actual Dimensions: 11 7/8" x 35 7/8" x 1 3/4"

Actual Dimensions: 17 3/4" x 35 3/4" x 3/4"

Actual Dimensions: 16 7/8" x 21 7/8" x 1 3/4"

20" x 30" x 2" MERV 4 - Residential Washable Air Filter - 1 Pack

27 1/2" x 29 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack MERV 8 -Pleated Air Filter:27 1/2" x 29 1/2" x 1" MERV 8 - Premium Pleated Air Filter 21" x 21" x 1"27 1 2" x 29 1 2" x 1" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 27 1 2" x 29 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