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Carrier 48JZ048090300 Air Filter
It is recommended that the filter gets replaced four times a year so as to maintain good airflow through the ducts. The measurement proportions of the filter is not a optional choice because of the constraint of your system. Filters are made in lots of filtering types which depends on your particular air quality needs and air handler size requirements.
What are the indications that my primary air filter is not doing its job?
- As you face it toward a light source, it does not shine on the opposite side of the filter
- The unit air filter looks very bad and perhaps should be replaced ASAP
- Many pros have suggested to replace your air filter every season of the year in order to have cleaner breathable air inside
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