Nauticus ST980-30 30lb Smart Tabs 9" x 8" Trim Tab KitThe Nauticus Smart Tabs Automatic Trim Tab System is ideal for vessels from 10' to 22' and feature marine-grade stainless steel components for durability and performance. This trim tab system provides maximum versatility in installation, even on many contoured transoms. Actuators are sealed in chemical and ultraviolet-resistant EDPM rubber boots for extended life. Smart tabs are easily installed on most aluminum, wood, or fiberglass transoms in less than an hour.Features: For boats with horse power rating of 30 to 50 for motors with two or four stroke engines.; Smart tabs self adjusting trim tabs for small power boats, a speed regulated system.; Plates include (5) actuator mounting positions for further customization; Adjustable trim plate bracket; Trim Tab Planes are 9" Wide by 8" Deep; Installs in less than an hour; Made in the USA; Trim Tab Kit Includes: Stainless steel components; Self-contained nitrogen gas actuators with rubber boot seals; Complete owners manual and installation manual; Manufacturer's warranty - Nauticus, Inc. Warrants to the retail purchaser of this product that it is free from defects in material and/or workmanship for five years on all metal components & two for rubber boot covers and gas actuators, from date of purchase.Trim Tab Specifications: Boat Type: Small Tenders & RIBs; Boat Length: 10', 11', 12'; Motor Size: 20 to 25 HP; Motor Type: 2 or 4 Stroke; Boat Type: RIBs, Flats & Bay, Bow Riders, Fish & Ski; Boat Length: 13', 14', 15'; Motor Size: 30 to 40 HP; Motor Type: 2 Stroke; Click here for Nauticus Smart Tabs Trim Tab Kit Owner's Manual