gearbox RS99 Reduction gearbox RS99, ratio 2.4:1 Interpump code RS99 Specification Interpump codeRS99Rated up to3.7 kWRatio2.4:1Drive19 mm engine shaftNoteFor 1450 rpm pumps For pump series Interpump 44 series Pumps it suits Interpump 44 series 7 W97W112W124W130W140W150W170