21 1/2" x 34 1/2" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 17-375l 23 1/8" x 23 1/8"

23 1/8" x 23 1/8" x 1" MERV 11 - Pleated Air Filter - 6 Pack

14" x 36" x 1" MERV 11 - Pleated Air Filter - 6 Pack

18" x 36" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

6" x 14" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

17 1/4" x 23 1/2" x 1" MERV 11 - Pleated Air Filter - 6 Pack

21 1/2" x 34 1/2" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 17-375l 23 1/8" x 23 1/8"21 1 2" x 34 1 2" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 21 1 2" x 34 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