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. Product : GARMIN B60 20 DEGREE BRONZE TILTED ELEMENT 600W 8 PIN Manufacturer : GARMIN Manufacturer Part No : 010-10982-20 UPC : 753759971823