Furuno 165T-50/200-SS260 DFF3D Thru-Hull Combo Transducer

The Furuno 165T-50/200-SS260 DFF3D Thru-Hull Combo Transducer is a professional-grade dual-frequency sonar head engineered for serious anglers and boaters who demand precision structure detection in freshwater and saltwater environments. This transducer delivers simultaneous 50 kHz and 200 kHz frequency output, allowing you to switch between wide-coverage scanning and high-definition target definition without mechanical adjustments. Whether you're targeting deep structure or reading shallow spawning grounds, this combo unit eliminates the need for multiple transducers and simplifies installation on your vessel's hull.

Built with stainless steel construction, the SS260 housing provides corrosion resistance and durability in saltwater applications where standard materials fail quickly. The thru-hull design ensures stable, vibration-free sonar performance by mounting directly into the hull below the waterline, eliminating the signal loss and interference common to transom-mounted alternatives. The DFF3D architecture integrates seamlessly with compatible Furuno display units, processing raw sonar data into crystal-clear imaging that reveals fish, thermoclines, bottom composition, and underwater vegetation with remarkable detail across both frequency bands.

Installation requires a thru-hull mounting pocket and connection to a Furuno NavNet compatible fishfinder or multifunction display—verify your unit supports dual-frequency DFF3D transducers before purchasing. This transducer excels on tournament bass boats, offshore center consoles, and professional guide vessels where reliability and fish-finding accuracy drive daily success. The combo frequency pairing makes it ideal for anglers who fish multiple depths and conditions, delivering the versatility needed to adapt your sonar strategy without hardware changes.