Part Number: 010-12006-11 0101200611 Compatible With 4pin, 8pin and 12pin transducer to the transom of your boat with this mount that provides excellent sonar returns at all speeds. | Compatible With Model: Echo 151dv/201dv/301dv/551dv & EchoMap 50dv/70dv; | Compatible With Model: GPSMAP 1020xs, 1040xs, 7407xsv, 7408xsv, 7410xsv, 7412xsv, 7416xsv, 7607xsv, 7608xsv, 7610xsv, 7612xsv, 7616xsv, 840xs, 8410xsv, 8412xsv, 8416xsv, 8610xsv, 8612xsv, 8616xsv; | Compatible With Model: GT20-TM, GT21-TH, GT21-TM, GT22HW-TM, GT23M-TH, GT30-TH, GT30-THP, GT30-TM, GT40-TM, GT41-TH, GT41-THP, GT41-TM, GT50M-TM, GT52HW-TM. | Made of high quality stainless steel. Well tested, reliable, high strength and corrosion resistant for longer use, designed for use in salt water. The bracket allows you to mount the transducer on the transom of your boat so that it always stays in the water, providing good sonar return. The bracket is adjustable so that the angle of the transducer is parallel to the water surface. When the boat is traveling at high speeds, the spray shield stops excess water from spraying off the transducer. Minimal drag on the boat.