Carrier FX4BNB060000AAAA Air Filter

It is recommended that the air filter is swapped out four times a year due to the filter clogging up and restricting the flow of air throughout the home. The actual size of the filter is not a personal choice due to the constraint of the availability of room of your air handler. All air filters are available in many styles and sizings, depending on your demands for clean air and whether anyone suffers from allergies in the home.

What to see if the dust filter has a need to be replaced?

Check to see if your air filter is in stock!
If you decide on picking up or ordering do your best and cross-check the model number and also make a visual comparison so that you are positive that the right air filter is the one being purchased. Installation of a new air filter can be quite easy assuming you energy and have the tools to do it right.
Feel free to download your manual for help.
Check out your air filter!