This genuine Rexair replacement motor powers the Rainbow E2 water-filtration vacuum cleaner. The motor generates the airflow that draws dirty air through the Rainbow's signature water basin, trapping dust, dander, and allergens in the water instead of a bag — so a healthy motor is essential to the whole filtration cycle.Designed as a direct-fit part for the Rexair Rainbow E2 series, this motor is the right repair when your machine loses suction, runs loud, stalls, or stops turning the separator. Worn carbon brushes, failing bearings, or an overheated armature all point to a motor replacement. Replacement motor for the Rexair Rainbow E2 system Restores suction and proper separator speed Part #R12918 Fitting the correct Rainbow E2 motor returns the vacuum to factory airflow and keeps the water-filtration cleaning performance you expect from Rexair.