Garmin Xdcr 77/200KHz/T 20 Brnz Lo-Pro Blue New Condition 010-10217-22. Features of Garmin Xdcr 77/200KHz/T 20 Brnz Lo-Pro Blue: Depth transducer MFG # 010-10217-22 Airmar B619 bronze low-profile thru-hull w/ 20 deg tilted element 77/200KHz dual beam...