Garmin B164 1kW Tilted Element 20 Degree - 8-Pin [010-11010-20]B164 1kW Tilted Element 20 8 Pin Garmin's bronze, thru hull mount transducer with 20 tilt provides depth and temperature data. Garmin's transducer has an operating frequency of 50 or 200 kHz and mounts on a 16 24 deadrise angle. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov. Specifications: