The CG max *COMES* with the fine filter bag. If it didn't, then you didn't get the full CG package, that might be why it is less on eBay.

In theory, the CG has the following advantages:
- More power (supposedly 30% more)
- Faster charging (1 hour vs. 4 hours)
- Includes the fine filter bag.

The CG replacement motor box is 139 vs. 79 for the regular box, so it better do something better!!!