Bennett Trim Tabs Sport Tab System. Every Bennett system carries with it an accumulation of nearly 40 years of research development and testing and is designed to provide years of dependable service.Every trim tab is sheared and bent not welded. Welding alters the properties of stainless steel which invites corrosion. Bennett actuators feature through-hull hydraulics. There are no vulnerable external hoses to decay. Plus every Hydraulic Power Unit is tested by both person and computer to insure this reliable unit deflects the trim tabs holds firmly during use and retracts smoothly.Sport TabsBennett's M80 and M120 Sport Tabs are ideal for trailered boats in the 17-foot to 23-foot range. Their unique Batwing design provides 30 percent more lift than conventional trim tabs and their space-saving design ensures easy installation on virtually any transom. Trim tab kits include two stainless steel trim tabs two actuators a hydraulic power unit all necessary wiring tubing hardware and installation video.M80: 8" x 10" for 17 foot to 20 foot boatIncludes:(2) Trim Plane Assemblies (2) Hydraulic Actuators (1) Hydraulic Power Unit (1) Control unit (or combo) including wiring (1) Hardware Bag (1) 20 Hydraulic Tubing Specifications for Bennett Trim Tabs M80 Sport Tab System: Manufacturer: Bennett Trim Tabs Color: Black Features of Bennett Trim Tabs M80 Sport Tab System Actuator Type: Hydraulic Package Contents: Bennett Trim Tabs M80 Sport Tab System Bennett Trim Tabs M80: Sport Tab System M80