NAUTICUS Nauticus Smart Tabs SX Series f/Boats 21'-25' w/150 - 220hp Motors / SX10512-70 / SX10512-70 Smart Tabs SX Series Trim Tabs. Smart Tabs SX Series for boats 21 - 25' with 150 - 220 hp Smart Tabs SX Series from Nauticus, Inc. IMPROVES YOUR BOAT'S OVERALL PERFORMANCE - GUARANTEED!!! If these trim tabs don't provide you with an outstanding performance increase, contact us within 30 The NEW SX series incorporates all of the fully automatic features of our popular SMART TABS, in add The nitrogen Gas Actuator provides LIFT at the stern of the boat by holding the trim plate down duri