Top cap gland seal sheaths the actuator cable outer jacket as well as both internal conductors for maximum waterproofing 2.25 inch stroke Stainless steel ram won't flex, even under extreme loads Double O-ring for maximum protection Ballscrew rotates freely on 12 ball bearings at both ends of its stroke so there's no need for complicated limit switches and clutches Self-locking ballscrew locks into position and will not drift Precision molded, powdered metal, high alloy gears provide high accuracy, high wear resistance, and high strength for long life Tough, high-torque motor easily transfers 750 lbs Available in 12- or 24-volt motor. Kit includes 12-volt motor High-impact, ultraviolet resistant nylon 66, 50% glass fiber reinforced thermoplastic housing Corrosion proof Vandar cap and mount, stands up to severe loads Solid stainless steel billet end available for heavy duty, extreme duty and super strong applications California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov.