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Add depth to your chartplotter view with the GSD 20 series remote sounders. The GSD 21, a powerful analog sonar, along with the GSD 22, Garmin's first digital sonar, are robust units designed to opera
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- Price Range:
$12 - $450
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Add depth to your chartplotter view with the GSD 20 series remote sounders. The GSD 21, a powerful analog sonar, along with the GSD 22, Garmin's first digital sonar, are robust units designed to opera
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- Price Range:
$240 - $240
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This is a brand new Garmin GSD 21 Remote Sounder (50/200kHz, 500 Watts RMS), 30 ft. power/data cable, CANet cable, CANet terminator, and installation instructions. Garmin P/N 010-00502-00 Standard ...
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- Price Range:
$225 - $225
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