Lennox X8790 MERV 16 Pleated Air Filter 20X21X5"

The Lennox X8790 is a high-efficiency pleated media air filter that can effectively trap a large amount of contaminants in your home. This measures 20 x 21 x 5 Inches and is 5 Inches thick to help capture dust, allergens, and other irritants that are as small as 0.3 microns due to its MERV 16 rating. The pleated design can provide an airflow of 1400 CFM and still have filtration. This filter is from the PureAir series of Lennox and is used in homes with furnaces and air conditioning systems.