9 3/4" x 29 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 18-25l 21" x 23" x 1"

21" x 23" x 1" Permanent Washable Air Filter - 1 Pack

Actual Dimensions: 23 5/8" x 35 5/8" x 3/4"

Actual Dimensions: 16" x 28" x 3/4"

Actual Dimensions: 16" x 36" x 1 3/4

with each stage capturing progressively smaller particles inside the filter

9 3/4" x 29 3/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack 18-25l 21" x 23" x 1"9 3 4" x 29 3 4" x 1" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 9 3 4" x 29 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