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Garmin GT20-TM Transom Mount DownVü 500W (CHIRP 455/800kHz); Traditional 500W (77/200kHz) Transducer w/Temp - 8-Pin
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Sensor echo sounder Garmin gt20-tm 77 \ 200 + 455 \ 800 kHz (4-pin) 010-01960-00 with mounting on the Tran and Troller - AliExpress
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