Lenco 9" x 9" Edge Mount Trim Tab Kit without Switch Kit 12V [15013-101]9" x 9" Edge Mount Trim Tab Kit without Switch Kit 12V Lenco Electric Edge Mount Trim Tab Kits make your boat ride smoother, dryer, faster and with increased safety whether on a small skiff or a large yacht. The Lenco ball screw design is more reliable, three times more powerful and features an instant response, which makes them very user friendly compared to typical hydraulics. Lenco fast response electric actuators are fully submersible with all