XKA Stainless Steel Trim Tab Kit with ALC-1 Control - 12 x 18 The Lectrotab stainless steel trim tab design provides unmatched strength and reliability.  All stainless steel tabs are fabricated with a continuous rolled and pinned hinge.  This design eliminates the need for welding. Combined with a precision-engineered actuator, this kit is built to combine quiet operation with a non-hydraulic, maintenance free design.  The unit is corrosion free, ensures very accurate tab positioning, provides maximum lift force, and is totally self-contained for easy installation.  The actuator assembly is packaged in a non-metallic permanently sealed housing.  No components need to be installed inside the boat. Most importantly, unlike hydraulic trim tabs, there is no oil to leak out.  The actuator incorporates either a standard or low profile transom mounting bracket. The Automatic Leveling Control (ALC) will automatically adjust your trim tabs to maintain a level boat for a more comfortable and enjoyable ride. Additionally, the ALC automatically corrects the roll from side to side and pitch from fore to aft to enhance your boating experience and improve your fuel economy.Features:Continuous rolled and pinned hinge provides added strength and eliminates the need for weldingUpper ram seal location cannot be damaged due to fouled ram or barnacle growthUtilizes internal pressure equalization systemInternal brake system prevents unwanted tab movement when under way or backing downQuiet operationActuators are fully load tested to push 1000 lbs of forceNon-metallic external structure which cannot corrode and will not deteriorate in the sun or under waterTechnical Specifications: Trim Tab Size (L x W) - 12" x 18" (30 x 46 cm)Boat Length - 20' to 40' (6 to 12 M)Trim Tab Material - 12 gauge, 304 Stainless Steel Actuator DC Voltage - 12 VActuator Stroke Length - 2.25" (57 mm)Actuator Cable Length  - 23' (7 M)Actuator Vertical Height - 11.875" (302 mm)Control Dimensions (W x H) - 3.15" x 3.07" (80 x 77 mm)Control Mounting Hole Cutout - 2" (50 mm)Control Operating Voltage - 12 or 24 VIn the Box:One (1) Automatic Leveling ControlTwo (2) Stainless Steel tabsTwo (2) actuators w/23' (7 M) cablesInstruction Manual *Sold as a Kit