13 7/8" x 13 7/8" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:13 7/8" x 13 7/8" x 1" MERV 6 - Fiberglass Air Filter 18" x 24" x 1"

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

16 1/4" x 21 1/2" x 1" MERV 11 - Pleated Air Filter - 6 Pack

13 1/2" x 25" x 1" MERV 11 - Pleated Air Filter - 6 Pack

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

13 7/8" x 13 7/8" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:13 7/8" x 13 7/8" x 1" MERV 6 - Fiberglass Air Filter 18" x 24" x 1"13 7 8" x 13 7 8" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 13 7 8" x 13 7 8" 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