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Lennox G40UH-48C-110 Air Filter
All air filters are made in lots of filtering levels, depending on your demands for clean air and air handler size requirements. The actual dimensions of the air filter can not be a choice that needs to be made due to the constraint of the availability of room of your furnace or handler. It is recommended the your furnace filter is exchanged for a new one every 90 days or so to maintain the best air quality through the ducts.
Major warnings your Lennox air filter is not going to last much longer
- The air filter looks dusty and probably should be replaced as soon as humanly possible
- Manufacturers have recommended to swap out your air filter every three months to keep the unit running efficiently
- If you were to lift up the filter, the light does not breach the other side of a very dirty air filter
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Before buying or ordering a new Lennox G40UH-48C-110 replacement part, do your due diligence and cross-check the model number as well as make a visual inspection in order to be sure the right air filter is the one being purchased. HVAC professionals could be quite expensive to hire so it is best to shop around to acquire the best rate if you do not want to pay too much.
Feel free to download your manual for help.
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