17 1/2" x 19 1/2" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:17 1/2" x 19 1/2" x 1" MERV 6 - Fiberglass Air Filter 8 1/2" x 20" x

8 1/2" x 20" x 1" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 21 1/4" x 23" x 3/4"

19 5/8" x 23 5/8" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

Actual Dimensions: 15 3/4" x 28 1/2" x 3/4"

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

17 1/2" x 19 1/2" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:17 1/2" x 19 1/2" x 1" MERV 6 - Fiberglass Air Filter 8 1/2" x 20" x17 1 2" x 19 1 2" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 17 1 2" x 19 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