DescriptionThis is a replacement barrel housing that holds the diverter core of a shower mixer valve (Top Dial used to select various features) The part includes a faceplate securing nut and rear fixing nut as photographed.Commonly found on 3 dial shower mixer valves on brands such as Aqualusso, Opus, Alto, Lisna Waters, Aquaplus, Vidalux, Insignia and many many more. Barrel Diameter: 28.8mmBarrel Height: 37.6mm