The 4220 rig is mounted on a 4x4 Kawasaki Mule providing access to those hard
to reach areas or areas with difficult terrain. Besides being compact,
measuring under 6 feet high by 5 feet wide, the 4220 is fueled by propane,
operating safely in confined areas. With the exception of its static weight, this
limited access unit has the same sampling capabilities as our van-mounted Geoprobe® units.