20 1/2" x 23 1/2" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:20 1/2" x 23 1/2" x 1" MERV 6 - Fiberglass Air Filter 18 1/2" x 20 1/2"

18 1/2" x 20 1/2" x 1" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 8" x 10" x 3/4"

20" x 28" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

6" x 36" x 1" MERV 13 - Pleated Air Filter - 6 Pack

20" x 20" x 12" 95% No Header Rigid Filter

20 1/2" x 23 1/2" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:20 1/2" x 23 1/2" x 1" MERV 6 - Fiberglass Air Filter 18 1/2" x 20 1/2"20 1 2" x 23 1 2" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 20 1 2" x 23 1 2" x 3 4" This filter is constructed using a MERV 6, fiberglass media with a downstream scrim and encased in the same partially recycled cardboard frame as pleated air filters. Unlike disposable filters made with sharp metal, these will not cut your hands and feature a low pressure drop and high level of filtration. Each filter lasts up to 1 month and should