![]() Nylon Through-Hull Transducer - Fishfinding/Depth Only You'll need a through-hull transducer if you have an inboard engine (false readings result from transom-mount transducers used with inboards). This high-strength nylon transducer is used for fishfinding and depth. Made by: Garmin More info and price « Item Item » Related items: accessories - fishfinders/sounders |