Our standard series Hydraulic jack plates have been on the market since 1978 and are a proven unit. They have been redesigned, but the concept has remained. The lightest weight hydraulic jack plate on the market! The standard series belief is to keep the least amount of weight on the transom, and keeping the pump inside the boat keeps this weight down. All standard series jack plates have a lifetime warranty on the structure to the original end user, and a 5 year warranty on the hydraulic pump motor.Jack plates are used to improve an outboard boats speed, holeshot, fuel efficiency, and the boater navigate in shallow waters. Bob's Jack plates offer 1 piece design, unlike competitors that require setback spacers to achieve the proper setback. Pump inside boatAutomotive grease nipples for easy lubricationTension rodsMade in USA, in our own factory in Tampa, FloridaRated for 300HP, upto 625 lbs motors (heavier should use Extreme series)Pre drilled for dual side mount Power Pole bracketsAll models are manufactured with aluminum and stainless steel. The Minimum Lift Above Standard Transom is 7-1/2" (1-1/2" built in. 6" rise).*Price includes complete package (lift, controls, pump, switch, hoses, instructions, oil and limited LIFETIME structural workmanship warranty.Warranty on the pump (against defects of quality and workmanship) is 60 months. LONGEST IN THE INDUSTRY. Wire harness and solenoids warranty is 12 months.Pre drilled for dual side mount Power Pole bracketsAll models are manufactured with aluminum and stainless steel. The Minimum Lift Above Standard Transom is 7-1/2" (1-1/2" built in. 6" rise).*Price includes complete package (lift, controls, pump, switch, hoses, instructions, oil and limited LIFETIME structural workmanship warranty.Warranty on the pump (against defects of quality and workmanship) is 60 months. LONGEST IN THE INDUSTRY. Wire harness and solenoids warranty is 12 months.