Are you talking about the transducer itself not fitting into the spot on the Genz Pack for the transducer to rest in? If that is what you are referring to then yes there is an adapter you can get. This adapter comes with the Tri-Beam transducer when you buy it new. I have one here if you need it $5 plus tax and shipping.
If you are having trouble with the transducer plug going into the back of the unit then I have no idea there...As everyone else said they work with all Vexilar flashers.
-Lawren
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