16 1/2" x 21 1/2" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 18w assembled in a criss-cross fashion

assembled in a criss-cross fashion for strength

16 3/8" x 21 1/2" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

16" x 25" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack

Actual Dimensions: 18" x 24" x 1 3/4

Each filter lasts up to 1 month and should be changed and disposed of regularly

16 1/2" x 21 1/2" x 1" MERV 6 - Premium Fiberglass Air Filter - 6 Pack 18w assembled in a criss-cross fashion16 1 2" x 21 1 2" x 1" MERV 6 Fiberglass Air Filter 6 Pack Actual Dimensions: 16 1 2" x 21 1 2" 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