Lenco High Performance Trim Tab Kit - 29" x 14"High Performance Trim Tab Kit - 29" x 14" Radiused blades give maximum clearance for multiple outboard applications and reduces cavitation to the prop. The stylish design gives maximum performance and is built for extreme duty applications. Kit is factory assembled with full transom back plate, mechanical strain relief cable seal, adjustable C-channel mounting brackets, and 3.75" sacrificial anodes. Boat length - 30' - 52". Switch required: 15071-001.