This might help
What you can do is contact Tripp-Lite and check into their Line Conditioners, they have a 220/240V 50/60Hz unit in 600w, 1000w, and 2000w and you can see if they have an adapter for the plug type for Argentina. That should work. But contact them and they should be able to help, and when you get the info (if they have something like that, get the model number and contact Parts Express and they can special order it for you.