Raymarine Stainless Steel SS60 Low Profile Thru-Hull Transducer w/ 12 Degree Tilted ElementThe SS60 is a stainless steel, dual frequency (50 200 kHz) through hull transducer with tilted element technology that compensates for the boat's hull deadrise, eliminating the need for a fairing block. The transducer mounts flush to the boat's hull, reducing drag and improving water flow. Built in deadrise compensation keeps the main focus of the sonar beam pointing straight down, resulting in strong echo returns and accurate depth readings. A built