Tripp Lite SRCOOL12K Blower Wheel

The blower wheel has fins all around it and is used as to provide forced air through a dwelling. Some people call it a squirrel cage due to the alikeness of a very large wheel a hamster would run on. Regardless of what you call it, it remains a vital device that is needed for proper air pressure within the ductwork.

General warnings of a worsening blower wheel cage

Check eBay to see if your blower wheel is in stock!
If you are going to be buying or purchasing, do your due diligence and double check the correct model and also make a visual comparison in order to be sure the right blower wheel is being ordered. Replacing a new blower wheel is a breeze provided you know what you are doing and have the proper tools to get it done.
Feel free to download your manual for help.
Check eBay for your blower wheel!