Water Flow Sensor – Ariston Next Evo X 11L Genuine Ariston water flow sensor assembly for the Next Evo X 11L gas water heater. This sensor monitors water flow through the unit, allowing the boiler to activate and heat water when required. Features: Genuine Ariston spare part Detects water flow to activate heating system Direct replacement for worn or faulty sensors Specifications: Ariston part number: 65154084 Compatible model: Ariston Next Evo X 11L Dimensions: Width: 48mm Height: 85mm Length: 60mm