17" x 22" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 21-375w 21 1/4" x 23 1/4"

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

Chemically Treated:

MERV 8 - Pleated Air Filter - Premium Filters

Actual Dimensions: 15 7/8" x 35 7/8" x 3/4"

21" x 23 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

17" x 22" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 21-375w 21 1/4" x 23 1/4"17" x 22" x 1" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 16 7 8" x 21 7 8" 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