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Goodman GKS90904CXAB Air Filter
It is suggested the your furnace filter is replaced for a clean one four times a year so as to maintain good airflow throughout the home. The dimensions of the filter is not really a personal choice because of the constraint of whoever designed your heating and cooling system. Goodman GKS90904CXAB filters come in many types and sizes, depending on your desire for cleaner air and air handler size requirements.
Red flags your main filter is failing
- It looks gross and probably should be replaced soon
- It is greatly advised to switch out the air filter in your unit about every three months to keep the air inside clean and free of harmful dust
- Sunlight will not shine through to the other side of the filter at all
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Before you decide on buying or ordering a new Goodman GKS90904CXAB replacement part, do your due diligence and double check the model number as well as make a visual comparison so that you are positive that the correct air filter is the one being purchased. Safety is always important when you replace or install any part of a heating or cooling system. If you are in doubt about anything call a pro. Don't be sorry. Be safe.
Feel free to download your manual for help.
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