9" x 30" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 29-375w 18" x 27" x 1"

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

valuable tool in achieving LEED certification points

Actual Dimensions: 21 7/8" x 23 7/8" x 1 3/4"

Actual Dimensions: 9 1/2" x 29 1/2" x 3/4"

9" x 30" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 29-375w 18" x 27" x 1"9" x 30" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 9" x 30" 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