230mm long, Wall mounted basin spout with separate sensor suitable for pre-mixed water and complete with mains transformer Product Details Company Name Armitage Shanks Brand Name Sensorflow 21 Model Number A4183AA Maximum Flow Rate 3.7 litres Category Basin Taps Available In United Kingdom Efficiency Rating Chart Company name:Armitage Shanks Model:A4183AA 3.7 litres 222.90 kWh/p.a.