17 1/2" x 23 1/4" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:17 1/2" x 23 1/4" x 1" MERV 6 - Fiberglass Air Filter 21 1/4" x 24 1/2"

21 1/4" x 24 1/2" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

11 1/4" x 17 1/4" x 1" MERV 11 - Pleated Air Filter - 6 Pack

15" x 17 1/2" x 1" MERV 11 - Pleated Air Filter - 6 Pack

12" x 16" x 2" MERV 13 - Pleated Air Filter - 6 Pack

18" x 24" x 1" Permanent Washable Air Filter - 1 Pack

17 1/2" x 23 1/4" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:17 1/2" x 23 1/4" x 1" MERV 6 - Fiberglass Air Filter 21 1/4" x 24 1/2"17 1 2" x 23 1 4" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 17 1 2" x 23 1 4" 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