HAPPIJAC SINGLE 4820 ACME HEAVY DUTY SCREW JACK - 2,800LB|736515

The 4220 and 4280 screw jacks features square tubing. These replacement jack legs are designed for HappiJac truck camper jack systems, and include 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. Available in two models: 4220 or 4820 Easy-to- access manual override with full 360-degree cranking Efficient, precision CAD design sustains quiet operation Kit does not include the required HappiJac turnbuckles and stabilizing bar Plated and powder-coated outer tube resists corrosion Please verify compatibility before purchase Replacement jack leg for HappiJac truck camper system Upgradeable to electric