I have one old sounder transducer I would like to remove. Not a big fan of fiberglassing the hole. Does anyone know of a suitable transducer replacement plug that I could install like the original transducer, but with little hanging out on the outside of the hull? I have looked, but see nothing.
How about adding a raw water pick-up. Then capping it on the inside. All bronze components.
Or 2 bronze hex bushings with a connector between them. Cap both ends. 5200 as an exterior seal.
Myself I would Glass it in with a plate on the inside.