Garmin 18x PC GPS Navigator Unit : Everything Else
Garmin GPS 18x PC Receiver 12 Channels Serial DC Power Input OEM - Office Depot
Marine Supply Shop - Nautichandler
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Marine Boat GPS Receiver Antenna Navigation 5 meter With BNC Male Plug Connector Mushroom shaped Case For GARMIN GPS128 GPS15|GPS Receiver & Antenna| - AliExpress