Garmin 010-11937-21 130-210KHZ 12D Tilt Bronze B175H TH 8P

The Garmin 010-11937-21 130-210KHZ 12D Tilt Bronze B175H TH 8P is a professional-grade through-hull transducer engineered for anglers and boaters who demand accurate, real-time sonar data in freshwater and saltwater environments. Built for serious fishing operations, this dual-frequency transducer delivers the clarity and depth penetration needed to locate structure, identify bottom composition, and track fish behavior at multiple depths. Whether you're running a center console, fishing charter, or dedicated bass boat, this Garmin transducer integrates seamlessly with compatible chartplotters and fishfinders to transform raw water column data into actionable intelligence on the water.

The dual 130 and 210 kHz operating frequencies provide specialized coverage across shallow and deep-water applications. The 130 kHz frequency excels in deeper water and offers broader cone angles for wide-area scanning, while 210 kHz delivers high-resolution detail in shallower zones and structure-rich environments. The 12-degree beam angle balances pinpoint accuracy with sufficient coverage width, reducing dead zones along the hull while maintaining precise target definition. Bronze construction resists corrosion from saltwater exposure and UV degradation, extending service life in harsh marine conditions. The tilt/transom mount (TH) design positions the transducer at an optimized angle for dynamic boats, minimizing turbulence interference and maintaining signal integrity even at cruising speeds.

This transducer is ideal for boaters running conventional through-hull installations where permanent mounting and maximum stability are priorities. The eight-pin connector (8P) ensures compatibility with standard Garmin sonar systems, including legacy and current-generation fishfinder units. Installation requires basic fiberglass or aluminum hull work and a dedicated power circuit; consult your vessel's wiring schematic and Garmin documentation to confirm proper transducer depth and angle for your specific hull design. Weight of 10.8 lbs reflects the robust bronze housing and internal architecture, making this a heavy-duty choice for commercial fishing operations, tournament anglers, and offshore cruisers who rely on dependable sonar performance season after season.