HAPPIJAC Lippert Components 313774 4820 Heavy Duty Acme Screw Jack - 2,800 lb.HAPPIJAC
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The 4820 Screw Jacks features square tubing. The 4820 jack includes an outer tube that has been zinc plated and then powder-coated for superior corrosion resistance. It also has a wiper at the bottom of the jack to help prevent debris from getting into the jack leg, and a zinc plated inner leg. All Happijac jacks have an electrical upgrade option and have a one year warranty.