Garmin B619 20 Degree Tilt Bronze Thru-Hull Transducer - 8-Pin [010-10217-22]B619 20 Tilt Bronze Thru Hull Transducer 8 Pin Minimize Your Drag The B619 model have been the standard in low profile models for many years. Their large sensitive ceramics allow deep echosounding up to 206M (700'). These nearly flush units minimize drag as only 5mm (2 10") of the housing extends outside of the hull. The bronze B619 provides a vertical beam without a fairing. Inside the housing, the ceramic element is tilted to provide built in