Garmin 0100286802 GT15M-THF Stainless Steel Thru-Hull Transducer, 20A

Designed for reduced drag and optimum sonar performance on midsize fishing and cruising boats, this flush-mounted, 600-watt midband CHIRP transducer clearly defines fish arches, structure and bottom depth returns on your display. 600W output power, 50' cable. 20A supports hull deadrise angles from 16A to 24A.