C.E. Smith Flush Mount Rod Holder - 0 Degree - Black Liner - No Logo GROUP+ambassador-marine-rectangle-sink-304-stainless-steel-2-drain-soundkote-1610 There is no external sonar

There is no external sonar box required for installation

Allows two devices to be charged simultaneously while also displaying the batteries output

Additional calls that can be made are Individual

GPSMAP 64sc

Color/Appearance: Polished

C.E. Smith Flush Mount Rod Holder - 0 Degree - Black Liner - No Logo GROUP+ambassador-marine-rectangle-sink-304-stainless-steel-2-drain-soundkote-1610 There is no external sonarFlush Mount Rod Holder 0 Degree Black Liner No Logo Features: 316L Stainless steel 1 5 8 Inner diameter Fits 2 3 16 hole diameter Cap size 4 1 2 long x 3 5 8 wide 9 Tube length 1 4 wide x 1 2 tall gimbal bar Cast models feature a 1 2 drain hole The liner runs the full length of the tube