Since I have had no interest in purchasing as a package, I have decided to part it out. So, if you see anything in my post, including the link, that you might be interested in, let me know.
I plan on selling the kayak with the 'ducer still in place, as well as the bait pump and tank for $500. I imagine that the 'ducer should work with other Garmin sounders, otherwise it's just a fancy plug
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Jason