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Actual sizes vary depending on brand. 5" depth is really
4 3/8, or 4 3/4, or 5 1/4 .
> Skuttle Air Filters > DB-20-16 / 448-4, 448-8 ( 20" x 16" x 5" )

NOTE: WE NO LONGER CARRY THIS SIZE


WHY?..... ODOR DEFENSE removes dust particles as small as 3 microns (.00011811 Inches) and has an arrestance of up to 95%, (As Per ANSI/ASHRAE STANDARD 52.2) To illustrate, the dot inside the parenthesis ( . ) is 615 microns. Compare this to 3 microns.

But here is the beauty, ODOR DEFENSE ALSO
removes foul odors and harmful gases from the airflow in your home, while keeping air resistance at a low level. To Discover all about this GREAT Filter, go here.