Sensor type Radiator that uses the original Rover clip in type sensor hole in the bottom which was fitted from 1991 up until the introduction of the twin point front mounted type.This is a Cuprobraze 3 tube modern design version with 9 gills/fins per inch. Cuprobraze is the latest use of brazing in place of traditional soldering to join copper and brass components of radiators which can also use alloys that are stronger than conventional lead-tin solders. Brazed joints are stronger than soldered types which can allow for thinner metal to be used than that for usual copper/brass rads. (MWAGRD172).