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How to replace the filter for the Lennox G40UH?

Post created: 2014-09-04 Type of Equipment: Furnace Views: 249

This question was created on the page: https://www.furnacecompare.com/furnaces/lennox/g4ouh.html.

On 2014-09-11 Danielle wrote:

Filters for the Lennox G40UH are found outside of the furnace cabinet. See the chart below for the correct filter based on the width of your furnace cabinet. Let us know how you make out.


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