The flush-mounted bronze B75M transducer eliminates the need for a fairing block. This 600-watt broadband transducer is designed to allow both traditional and Spread Spectrum scanning when used with a compatible sonar like the GSD 26. It features a bronze, thru-hull mount design with 0 degree tilt and provides both depth and temperature data to your Garmin Marine Network. 800' maximum depth. 80/130 kHz. Supported on 0 - 7° deadrise angles.