Flanders - 25 in. W X 360 in. H X 1 in. D Synthetic 1 MERV Air Filter 1 pk

Permaire is a unique type of air filtration media that has evolved from a natural organic fiber media to completely new synthetic media. A single cut across the roll will produce a ready-to-install filter pad. The maze of fibers in a Permaire filter creates an electrostatic charge to catch and hold airborne contaminants.