18" x 25" x 2" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 17-25l 22" x 28" x 4"

22" x 28" x 4" MERV 11 - Pleated Air Filter - 6 Pack

12" x 20" x 2" MERV 4 - Residential Washable Air Filter - 1 Pack

21 1/2" x 22 3/4" x 1" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 20" x 21 5/8" x 3/4"

21" x 23" x 4" MERV 13 - Pleated Air Filter - 6 Pack

18" x 25" x 2" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 17-25l 22" x 28" x 4"18" x 25" x 2" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 17 1 2" x 24 1 2" x 1 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 be