Garmin, Depth/Speed/Temp, 50/200Khz, 1200
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Airmar B744V/VL External Thru-Hull Mount Transducer
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Airmar P66 200/50kHz Plastic Transom Mount Transducer (8-pin)
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Airmar B744V 200/50kHz Bronze Thru-hull Transducer (8-pin)
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50/200kHz, Transom-Mount, Dual-Frequency Transducer
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Thru-Hull Dual-Frequency 50/200kHz (B744V) Transducer
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Bronze Thru-hull Mount Transducer with Depth, Speed & Temperature