EXACT-MATCH - The replacement screw jacks are just like your original HappicJac equipment for a seamless installation DURABILITY - Outer tube has been zinc-plated and powder-coated for superior corrosion resistance STRENGTH - Available with either a 2,220 or 2,800 lb. lift capacity PROTECTIVE DESIGN - Wiper at the bottom of the jack helps prevent debris from getting into the jack leg EASY UPGRADE - All Happijac jacks have an electrical upgrade option for more efficient operation