Sea-Dog 280301-1 Rail Base Fitting 2-3/4" Round Base 30° 316 Stainless Steel - 1" OD PMSHRIN3 The control knob can be

The control knob can be removed by switching to an counterclockwise 45 degree position

full range audio at every volume level

Includes an adjustable (22″ to 70″) anodized aluminum pole

high wide CHIRP traditional sonar

Stainless Steel Self-Locking Hardware

Sea-Dog 280301-1 Rail Base Fitting 2-3/4" Round Base 30° 316 Stainless Steel - 1" OD PMSHRIN3 The control knob can beRail Base Fitting 2 3 4" Round Base 30 316 Stainless Steel 1" OD These Round Rail Base Fittings include set screws where appropriate. Set screws can be purchased separately (299999 1). Requires 1 8" Allen wrench to install. Constructed of corrosion resistant investment cast 316 stainless steel. Installs with three FH fasteners (not included). *Stainless tubing with a wall thickness of 0. 049 WARNING: This product can expose you to chemicals which are