Garmin Transom Transducer/Mount w/ Dual Frequency
Part Number: 010-10272-00
-Garmin Transducer, works with - Fishfinder 100 Blue, 160 Blue, 240 Blue, 320C, GPSMAP 188/188 C Sounder, 238 Sounder
-Beamwidth of 15 degrees at 200 kHz, 45 degrees at 50 kHz;
Transducer kit comes with mounting hardware and installation instructions.
-"This Transducer has a dual frequency capability to provide both wide-angle search and high resolution, narrow beam viewing."
It's brand new, selling for $55, and I'll cover the shipping myself.
"I am not against golf, since I cannot but suspect it keeps armies of the unworthy from discovering trout."