The Garmin GST 43 thru-hull transducer drops into an existing Nexus 43mm (TH43) opening, making it a clean retrofit for boaters who want accurate water speed and temperature without drilling a new hole. Paired with the included GST 10, it joins an NMEA 2000 network and feeds live data to compatible Garmin chartplotters and instrument displays.

Specifications:

• Measures water speed and water temperature
• Thru-hull installation type
• Retrofits existing Nexus 43mm thru-hull (TH43) opening
• Connects to NMEA 2000 network via the GST 10 (bundled)
• Delivers real-time data to compatible Garmin chartplotters and instrument displays

⚠️ California Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to P65Warnings.ca.gov.