Garmin GT21-TM CHIRP + Clearvu TransducerGT21 TM, Garmin transom trolling motor transducer. Garmin GT21 TM CHIRP + Clearvu Transducer The Garmin GT21 TM is a transom trolling motor transducer with CHIRP, ClearV. Connects via 12 pin Garmin port, works with current GPSMAP and ECHOMAP units. Transom or trolling motor mount, most common installation for inland and inshore. Key Features CHIRP Sonar ClearV Down Imaging Transom Trolling Motor Mount 12 Pin Garmin Connection OEM Garmin Part Why
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