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.
- Replacement jack leg for HappiJac truck camper system
| Attributes | |
| California Proposition 65 | No |
| Country of Origin (Primary) | US |
| Emission Code | Legal US |
| Hazardous Material Code | N |
| Life Cycle Status Code | Available to Order |
| NAFTA Preference Criterion Code | B |
| SDR Required Flag | N |
| Warranty Time | 1 |
