Hmmmmm.... I had that dilemma myself. LOL This is the Ultrasonic cleaner I purchased. I bought Chem-Tool Carb Cleaner (2) One Gallon Cans and used that as a cleaning medium. I like that stuff and I get the best of both worlds. Chem-T.tool works good all by itself and then with that in the ultrasonic and heat... it only works better. Got tired of playing around trying to clean carbs. It gets HOT ENOUGH TOO!!
NOTE: I don't remember the first cleaner I used but it turned the whole carb "BLACK" I had to clean them again using Chem-Tool and they stayed kinda black. Heck on that crap !! I think that stuff actuall pulled the impurities out of the aluminum but... don't need that.
Hope this helps !! Good Luck !!
Note 2: I bought it before all the China insanity but it works good as far as I am concerned.