Garmin 010-12106-10 Jack Plate Mount for Garmin Echo Fishfinder Easily attach your compatible 4, 8 or 12-pin scanning transducer to the jack plate of your boat with this mount, which provides excellent sonar returns at low speeds. It protects the transducer from underwater obstructions and creates no drag on the boat Easily attach your compatible 4, 8 or 12-pin scanning transducer to the jack plate of your boat with this mount, which provides excellent sonar returns at low speeds. It protects the transducer from underwater obstructions and creates no drag on the boat Easily attach your compatible 4, 8 or 12-pin scanning transducer to the jack plate of your boat with this mount, which provides excellent sonar returns at low speeds. It protects the transducer from underwater obstructions and creates no drag on the boat