Martyr Grouper is an easy, convenient way to add extra corrosion protection to your boat. The Grouper comes complete with a 4.5 m (15?) cable and clip. It is an ideal way to provide temporary extra corrosion protection to your boat or engine when mooring in various water environments. Using the cable on a cleat, secure the Grouper’s weight below the bottom of the hull before attaching the alligator clip to outboard or outdrive mounting bolt, or to rudder or strut ground strap, etc. Clip to grounding strap, where possible, or to a component wired to the boat’s common DC ground. Do NOT connect to battery.

L: 195.6 mm

W: 74.2 mm

H: 48.1 mm

Weight: 2.67 kg