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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 .
 > BDP Air Filters > Nominal Size ( 12" x 20" x 4 1/4" ) Actual ( 12 1/8" x 19 7/8" x 4 1/4" )
"WE BEAT ANY PRICE!...Since 1995" - info@oxyclean.comWE OFFER ALL BRANDS IN MERV 8, MERV 11, MERV 13, MERV 16, PLUS......
ODOR DEFENSE™
 "Our #1 recommended air filter"


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.
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Carrier ODOR DEFENSE Air Filter OXYCLEAN AIR FILTERS with ODOR DEFENSE® Air Filter Replacement 12X20X4.25
ONLY: $49.75 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
BDP Air Filter BDP Air Filter, 12X20X4.25 MERV 8 - Aftermarket
ONLY: $44.11 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
BDP Air Filter BDP Air Filter, 12X20X4.25 MERV 11, Aftermarket
ONLY: $46.87 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
BDP Air Filter BDP Air Filter, 12X20X4.25 MERV 13, Aftermarket
ONLY: $49.75 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS