Garmin GT51M-THP CHIRP/Side/DownVu Xdcr Pair - GA-0100196611Garmin GT51M-THP CHIRP/Side/DownVu Xdcr Pair - GA-0100196611
GT51M-THP thru-hull mount transducer pair, MFG# 010-01966-11, CHIRP Traditional/CHIRP SideVu/ CHIRP DownVu optimized for depth performance and rough conditions.