Furuno B175M Bronze Thru-Hull 20° Tilt - Med Frequency

The Furuno B175M Bronze Thru-Hull 20° Tilt - Medium Frequency is a professional-grade transducer built for serious anglers and boaters who demand reliable sonar performance in freshwater and light saltwater environments. This bronze housing thru-hull unit integrates into your vessel's hull with a 20-degree tilt angle, optimizing beam projection and reducing blind spots directly beneath your boat. Whether you're navigating shallow structure, locating suspended fish, or mapping bottom composition, this Furuno transducer delivers the acoustic clarity that separates consistent catches from guesswork.

Medium frequency operation makes the B175M an ideal choice for versatility across depth ranges without sacrificing resolution. The bronze casting resists corrosion in saltwater splash conditions and maintains structural integrity through repeated launching and hauling. The 20-degree tilt design compensates for hull deadrise, ensuring your sonar cone points directly downward rather than backward, which is critical for accurate bottom tracking and fish marking on planing hulls. The thru-hull installation method provides a flush, hydrodynamic profile that minimizes water turbulence and transducer noise—a key advantage over transom mounts when boat speed matters.

This transducer pairs with Furuno fishfinders and marine electronics systems rated for medium-frequency input, making compatibility straightforward if you already own Furuno equipment. Installation requires drilling a thru-hull fitting and securing the transducer with epoxy bedding compound—a one-time investment that locks in years of dependable performance. Weighing 11.3 pounds with compact dimensions, the B175M fits standard thru-hull ports on most center console and recreational fishing boats without structural modification. For anglers seeking tournament-grade sonar reliability and boaters who value long-term durability, this bronze transducer represents a professional-level choice for freshwater lakes, rivers, and nearshore saltwater applications.