The Garmin GT17M-THF SS is a flush-mount, thru-hull transducer built for fishing and cruising vessels that demand clear, detailed sonar returns with minimal hull drag. Running mid-band CHIRP frequencies from 80–165 kHz at 1 kW of power, it resolves fish arches, structure, and bottom depth to 1,800 ft in saltwater and 2,400 ft in freshwater. The stainless steel housing pairs with Garmin Auto-ID for straightforward plug-and-play setup, and the 12-degree tilt stem accommodates hull deadrise angles from 8° to 15° across fiberglass, composite, steel, aluminum, and wood hulls — no fairing block required within the 0–24° deadrise range.

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 Angle (12° version): 8°–15° hull deadrise
• Housing Material: Stainless steel
• Installation Type: Thru-hull flush mount, 12° tilt
• Auto-ID: Yes — automatic transducer recognition on compatible Garmin chartplotters
• Compatible Hull Materials: Fiberglass, composite, steel, aluminum, wood

In the Box:

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