Mine is the AC.  Can't speak to the other, because I've never seen/used one.  
Mine is ten years old, and has had almost daily use for that time.
MA




________________________________
From: "oasisgr...@aol.com" <oasisgr...@aol.com>
To: silver-list@eskimo.com
Sent: Fri, January 22, 2010 11:07:30 AM
Subject: Re: CS>Mare with Possible Melanomas in Mouth

Which one exactly the Universal or the AC?    any difference besides Price?

In a message dated 1/22/2010 11:46:58 A.M. Eastern Standard Time, 
marmar...@bellsouth.net writes:
Mine is a Colloid Master from Synergenesis (www.wishgranted.com).  Also, one of 
our list