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Lennox G43UF-36B-070 Air Filter
HVAC specialists suggest that the filter gets replaced every 90 days or so because the filter can get clogged and may result in poor air flow through the ducts. All air filters are available in many filtering levels, in which the one you choose will depend on your air quality needs and the specific size of filter you need for your system. The actual dimensions of the filter is not really a choice you make due to the constraint of the availability of room of the manufacturer of your system.
Main clues your Lennox air filter will eventually need to be replaced
- It is greatly advised to swap out your air filter every season of the year to keep the unit running efficiently
- The unit air filter looks gray or brown and it would be best to replace it as soon as humanly possible
- As you face it toward a light source, it will not shine through to the other side of the filter
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Before you decide on buying or purchasing do your best and make sure of the correct model as well as make a visual comparison so that you are positive that the right air filter is being ordered. Once you have the part to replace the part all by yourself. Consult with a professional in your area to do it for you.
Feel free to download your manual for help.
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