GARMIN 010-12106-00, Step Mount
Easily attach your compatible 4-, 8- or
12-pin transducer to the step of your boat with this mount, which
provides excellent sonar returns at low speeds. The mount protects
the transducer from underwater obstructions and creates no drag on
the boat. And since the transducer is out of the water, sonar will
not track bottom when the boat is on plane.