Garmin B175M Bronze 12° Thru-Hull Transducer - 1kW, 8-PinExperience pro level sonar performance with the Garmin B175M Bronze 12 Thru Hull Transducer a rugged, 1 kW, 8 pin transducer designed for fiberglass and wood hulls. Its bronze from bronze construction delivers lasting durability in harsh marine environments, while providing precise depth and target separation at sea depths up to 3,000 feet. Key Features Flush mounted bronze housing protrudes less than 1 4" outside the hull, so it wont be damaged when