References
^ Garmin Dual Frequency Transducer, GARMIN INTERNATIONAL. UPC 753759035495 (revised Aug 2025)^ Garmin P79 Adjustable In Hull Transducer 50/200khz W/ 6 Pin, Garmin. Newegg. UPC 753759035495 (revised Feb 2016)^ Garmin 010-10327-00 200/50 Khz 12/45 Deg. Adjustable In-hull Transduce, Garmin. FactoryOutletStore. UPC 753759035495 (revised Nov 2014)
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