The Garmin GT17M-THF SS is a flush-mount, thru-hull stainless steel transducer built for fishing and cruising boats that demand clean sonar returns with minimal hull drag. Operating across a mid-band CHIRP range of 80–165 kHz at 1 kW of power, it resolves fish arches, structure, and bottom contour down to 1,800 ft in saltwater and 2,400 ft in freshwater. The 20-degree tilt version accommodates hull deadrise angles from 16° to 24° without a fairing block, and Garmin Auto-ID technology allows the connected sonar unit to configure itself automatically on startup. Compatible hull materials include fiberglass, composite, steel, aluminum, and wood.

Features:

• Mid-band CHIRP sonar (80–165 kHz) delivers high resolution, low noise, and strong target separation
• 1 kW output for deep-water performance — 1,800 ft saltwater, 2,400 ft freshwater
• Beamwidth of 9°–18° provides broad coverage while maintaining target definition
• Fast-response water temperature sensing built in
• Stainless steel housing and stem for durable thru-hull flush installation
• 20° tilt design supports hull deadrise angles from 16° to 24° without a fairing block
• Fits fiberglass, composite, steel, aluminum, and wood hulls
• Auto-ID plug-and-play operation — sonar unit configures itself to the transducer automatically
• RapidReturn™ Sonar compatible
• 50 ft cable with 8-pin connector

In the Box:

• GT17M-THF transducer
• Jam nut
• Spacer
• 2 washers
• 2 set screws
• Thread isolator
• Hull isolator
• Documentation

Specifications:

• Transducer Frequency: Mid-band CHIRP (80–165 kHz)
• Transducer Power: 1 kW
• Transducer Beamwidth: 9°–18°
• Maximum Depth: 1,800 ft saltwater / 2,400 ft freshwater
• RapidReturn™ Sonar Compatible: Yes
• Cable Length: 50 ft
• Sensing: Depth and temperature
• Connector: 8-pin
• Supported Deadrise Angles: 20° version supports 16°–24° hull deadrise
• Housing Material: Stainless steel