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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 ( 20" x 23" x 4 1/4" ) Actual ( 19 7/8" x 22 5/8" 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 20X23X4.25 (19 7/8 x 22 5/8 x 4 1/4)
ONLY: $58.93 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS

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BDP Air Filter BDP Air Filter, 20X23X4.25 MERV 8, AfterMarket
ONLY: $52.38 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS

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BDP Air Filter BDP Air Filter, 20X23X4.25 MERV 11, AfterMarket
ONLY: $56.53 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS
BDP Air Filter BDP Air Filter, 20X23X4.25 MERV 13, AfterMarket
ONLY: $58.93 each - DUE TO CANADA FIRES AND A LABOR SHOTAGE LEAD TIME IS 3-4 WEEKS