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Carrier 38TRA048 Air Filter
It is highly recommended that the air filter gets replaced four times a year to maintain the best air quality inside the house. The height, length and width of the filter is not really a personal choice because it is based on the declared size of the manufacturer of your system. All air filters are made in lots of filtering levels, in which the one you choose will depend on your air quality needs and air handler size requirements.
Major clues your main filter is on its last leg
- It is greatly suggested to switch out the air filter in your unit every season of the year in order to have cleaner breathable air inside
- The system filter looks brown and perhaps should be replaced as soon as you can
- When you hold it up, the light will barely infiltrate to the opposite side of a very dirty air filter
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