13 3/4" x 29 3/4" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 6-inch-air-filters Actual Dimensions: 12 1/2" x

Actual Dimensions: 12 1/2" x 21" x 3/4"

20" x 21 1/2" x 1" MERV 11 - Pleated Air Filter - 6 Pack

The corners are mitered and the frame is secured with pop rivet(s)

17 1/4" x 21" x 1" MERV 13 - Pleated Air Filter - 6 Pack

13 3/4" x 29 3/4" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 6-inch-air-filters Actual Dimensions: 12 1/2" x13 3 4" x 29 3 4" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 13 3 4" x 29 3 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