16 1/2" x 21 1/4" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:16 1/2" x 21 1/4" x 1" MERV 6 - Fiberglass Air Filter 24" x 28" x 4"

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

19 5/8" x 19 5/8" x 1" MERV 13 - Pleated Air Filter - 6 Pack

21" x 27" x 1" MERV 13 - Pleated Air Filter - 6 Pack

15" x 17 1/2" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

15 1/4" x 15 1/4" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack

16 1/2" x 21 1/4" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:16 1/2" x 21 1/4" x 1" MERV 6 - Fiberglass Air Filter 24" x 28" x 4"16 1 2" x 21 1 4" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 16 1 2" x 21 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