21" x 25" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 9-125l 21 1/2" x 27" x

21 1/2" x 27" x 1" MERV 13 - Pleated Air Filter - 6 Pack

20" x 21 1/2" x 2" MERV 13 - Pleated Air Filter - 6 Pack

Actual Dimensions: 19 7/8" x 21 7/8" x 3 3/4"

12 1/2" x 20" x 1" MERV 13 - Pleated Air Filter - 6 Pack

8" x 14" x 1" MERV 11 - Pleated Air Filter - 6 Pack

21" x 25" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 9-125l 21 1/2" x 27" x21" x 25" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 21" x 25" 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