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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 .
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> Lennox Air Filters > Lennox Carbon Filters
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Carbon Filter X2678 Lennox: Carbon Filter X2678 Lennox:

Lennox X2678 is the correct replacement carbon filter for the following air cleaner models:

Lennox HEPA 20

ONLY: $39.77 each - FREE SHIPPING When You Order Two or More
Carbon Filter X4137 Lennox: Carbon Filter X4137 Lennox:

Lennox X4137 is the correct replacement pre-filter for the following systems:

Lennox Healthy Climate HEPA 20

ONLY: $46.87 each - FREE SHIPPING When You Order Two or More
4' x 6 1/2' x 1/2" Carbon Media Roll ODOR DEFENSE® 4 feet x 6 1/2 feet x 1/2" Carbon Media Roll

4' x 6 1/2' x 1/2" Carbon Media Roll

ONLY: $78.67 each - REMOVES DUST AND FOUL ODORS!

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