Bennett BEA2000 BOLT Electric Trim Tab Actuator Bennett BOLT Electric Actuators feature superior seal design inspired by over 50 years of Bennetts proven success in hydraulic trimming techniques. Robust, water-tight black nylon actuator provides trouble-free operation for years to come Wires and seals completely protected from harsh marine environment, preventing problematic leakage and marine growth Installation is fast and simple without the need to assemble the actuator yourself How to Instal