21 5/8" x 29" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:21 5/8" x 29" x 1" MERV 6 - Fiberglass Air Filter 17 1/2" x 29 1/4"

17 1/2" x 29 1/4" x 1" MERV 11 - Pleated Air Filter - 6 Pack

Actual Dimensions: 18" x 28" x 3/4"

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

20" x 36" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

Actual Dimensions: 14" x 32" x 3/4"

21 5/8" x 29" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack MERV 6 - Fiberglass Air Filter:21 5/8" x 29" x 1" MERV 6 - Fiberglass Air Filter 17 1/2" x 29 1/4"21 5 8" x 29" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 21 5 8" x 29" 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