Bennett Classic Hydraulic Trim Tab Kit with Integrated Helm Control 219-1812OBI Hydraulic trim tabs are known for power, precision and durability. Get the most from your boat, no matter what the load, speed or sea conditions. Using the helm control, you can adjust the tabs to create the perfect cruising attitude. Get on plane faster, improve visibility, increase overall performance and efficiency. Kits Include: (2) Stainless steel trim tabs, (2) Hydraulic actuators, (1) Hydraulic power unit, All necessary wiring, tubing, hardware & OBI9000H control switch. Span x Chord: 18" x 12" Boat Size: 22'-27'