Y-adapter cable for sonar, 12-pin and 8-pin transducers to 12-pin

Connect a 12-pin Garmin scanning transducer and a traditional through-hull transducer to a compatible echoMAP™ chartplotter/sounder combo. This adapter cable allows the echoMAP to continue to display water depth from the through-hull transducer in cases where the transom transducer loses depth reading due to cavitation. The through-hull transducer must be installed in a fiberglass hull.