11" x 21" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:11" x 21" x 1" MERV 6 - Fiberglass Air Filter 20" x 22" x 1"

20" x 22" x 1" MERV 13 - Pleated Air Filter - 6 Pack

9 3/4" x 20 7/8" x 1" MERV 11 - Pleated Air Filter - 6 Pack

13 7/8" x 23 7/8" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

9" x 25" x 1" MERV 11 - Pleated Air Filter - 6 Pack

20" x 21 3/4" x 1" MERV 11 - Pleated Air Filter - 6 Pack

11" x 21" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:11" x 21" x 1" MERV 6 - Fiberglass Air Filter 20" x 22" x 1"11" x 21" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 11" x 21" 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 be changed and