Use Garmin's cable grommets to cover installation holes that have been drilled into your boat.
Compatible Devices:
GDL 30/30A
GMR™ Series
GPSMAP® Series
GSD™ Series
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.