21" x 23" x 4" MERV 8 - Premium Pleated Air Filter - 6 Pack MERV 8 -Pleated Air Filter:21" x 23" x 4" MERV 8 - Premium Pleated Air Filter Actual Dimensions: 10" x 14"

Actual Dimensions: 10" x 14" x 3/4

Actual Dimensions: 15 7/8" x 17 7/8" x 1 3/4"

Actual Dimensions: 15 7/8" x 31 7/8" x 3/4"

16" x 18" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

This washable filter uses a

21" x 23" x 4" MERV 8 - Premium Pleated Air Filter - 6 Pack MERV 8 -Pleated Air Filter:21" x 23" x 4" MERV 8 - Premium Pleated Air Filter Actual Dimensions: 10" x 14"21" x 23" x 4" MERV 8 Premium Pleated Air Filter 6 Pack Actual Dimensions: 20 7 8" x 22 7 8" x 3 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