B619 20 Tilt Bronze Thru-Hull Transducer - 8-PinMinimize Your DragThe 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 210 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 deadrise compensation. The resulting vertical beam provide