can clean lines of four inch and larger with variable pressures to 2,750 PSI and flows to 120 GPM. These trucks also all have positive displacement blowers for vacuum removal of debris at up to 27 inches of vacuum and 7000 CFM of air movement allowing them to operate efficiently in even the deepest of structures. This modern and efficient equipment simultaneously breaks through obstructions in the lines, cleans the lines, and vacuums away the debris.