Best depth transducer for eS127?

[bstreep]

Thank you again, Chuck for your quick response. Yet again!

I find several options out there for P79 Transducers. Maybe older part numbers? Some suppliers appear to have older stock. Will they all work? For instance, E66002? If so, is there a reason for the part number change (such as an improvement)?

It seems that the adapter cable is nearly as much as a new transducer, so why not replace it.

Thanks.