RAM MOUNTING MARINE SYSTEMS

2.5â Round Base, 1.5â Ball & Hardware for the echoââ 200, 500c, 550c: This mount has pre-drilled holes, including the universal AMPS hole pattern. Included are 3x (#8-32 x 5/8â PH PD Mach Screws) and 3x (#8-32 SS Nylock Nuts) that will connect to the bottom of the Garmin echo.