The best part about the Frigidaire window units is that you can use any type of window ac replacement filter. Not only is this convenient because you don’t have to run around looking for specific filters, but it will also save you money.
The 3M Filtrete Air Conditioner Filter, 15-Inch by 24-Inch (9808-12) and the Duck Brand 1285234 Replacement Air Conditioner Foam Filter, 24-Inch by 15-Inch by 1/4-Inch, 1-Pack are the best and cheapest replacement filters we have found. And one of the smartest things you can do to keep your ac running well all summer is to regularly replace the air filters. This will ensure that your unit is running efficiently and will also save you cash on your electric bills.