Garmin GRID 20 - Vertical C-Map Max HTM-4 - 12" x 34"

HTM-4 - 12" x 34" - Double Layer - Black

Programmable with up to 30 individual device MMSI number

Integrate an onboard charger through pre-wired connections

Feet and Bar-Pin are all cast simultaneously for the ultimate in strength

Emergency Parallel Switch - 12/24V - 275A

Garmin GRID 20 - Vertical C-Map Max HTM-4 - 12" x 34"GRID 20 Vertical Sit Back and Take Control Provides intuitive, easy to use remote access and control of your entire Garmin marine system 360 degree, all in one joystick with a rotary knob and push to select button Enables easy chartplotter menu setting navigation and fine control, even in the worst conditions 4 favorite keys can be designated to restore your system to a previously saved configuration Allows wired (NMEA 2000) or wireless installation