Don't know for sure but I think that there is a fair amount of standardization in the 'removable' transducers. 'Airmar' is one of the manufacturers. I doubt that this is an area where every body makes their own and they are all a bit different. Give a call to tech support of one or more of these companies that make the sounders you are interested in and ask questions. They might very well interchange. Be prepared with ALL measurements of your exisiting unit before you call.
Last edited by sailandoar; 06-10-2006 at 11:30 PM.