The Robertson Elementi Aqabella Sensor 40275 Series Column Combination Shower in black/brushed nickel finish, is designed for use in bathrooms and laundries in motels, hotels as well as retirement villages. It is suitable for mains pressure. The Aqua Air technology offers better showering experience by using up to 50% less water. The all Aquabella hand shower is fitted with a neoperl combined check valve and flow regulator. Air and water mix ensures superb flow performance.