18 1/4x22x1 Exact MERV 7 AC Furnace Filters 8 7/8x33 5/8x1 The electrostatic charge works as

The electrostatic charge works as a magnet to draw in and trap smaller airborne particles

and electrostatic filter media

with a metal mesh support grid

Actual Size: 8 x 18 x 3/4 (8 x 18 x 0

Actual Size: 9 1/2 x 19 1/2 x 1 3/4 (9

18 1/4x22x1 Exact MERV 7 AC Furnace Filters 8 7/8x33 5/8x1 The electrostatic charge works asActual Size: 18 1 4 x 22 x 3 4 (18. 25 x 22 x 0. 75) Merv 7 pleated air filter captures large airborne particles like household dust, mold spores, and pollen. This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 7 is equivalent to MPR 600 Made in the USA. Nordic Pure MERV 7 Pleated AC Furnace Air