Airmar SS565 Housing Style Transducer
If a thru-hull flush-style 600W transducer is what you need, the Tilted Element 555T-LTD/12 will accommodate a deadrise angle between 8° and 15°, while the Tilted Element 555T-LTD/20 is right for hulls with a deadrise angle of between 16° and 24°. Both of these transducers compensate for deadrise by angling the element inside the housing.
The transducer is labeled with an arrow on top of the housing that should point towards the keel, whether it is installed to port or starboard. This ensures that the tilted element within the housing is given the correct orientation.