I bought one of Eastwood's kits to convert a pressure blaster to soda. As a soda blaster it works well and I would recommend it. However don't count on being able to take one blaster and switch back and forth. The soda blaster has a restrictor in the soda feed that keeps it from flowing too much and the orifice is smaller than the coarse blasting grit. You can NEVER completely empty the old media out of the tank so it will plug the orifice in the soda conversion kit.
It works well but count on starting with a new blaster that has never seen coarse abrasives.