The screw jacks 4220 and 4280 feature square tubing.
These jack legs are designed for HappiJac truck camper jack systems and include an outer tube that has been zinc-plated and powder-coated for corrosion resistance.
A wiper at the bottom of the jack helps prevent debris from entering the jack leg, and there is a zinc plated inner leg.
All HappiJac jacks have an electrical upgrade option.
This kit comes with a screw jack designed for HappiJac truck camper jack systems.
It is a replacement jack leg.
Please see the manufacturer's guide before purchase to confirm compatibility.
HappiJac has been producing quality products for the RV industry for over 50 years.
HappiJac conducts extensive research and testing to develop products backed by sound engineering.
HappiJac leads the industry in fully upgradeable camper jacks, space-efficient room slides, and the only camper tie down system that effectively controls camper movement in all directions.
