Suitable for domestic and commercial properties. Provides whole house protection from limescale. Minimum working temperature: 3 celsius. Maximum working temperature: Cold feed only. Simple to install. Requires no mains power supply. Robust, corrosion-resistant compact design Two, Easy Grip Spanner Flats to make installation easier 10-year warranty Part L Building Regulation compliant WRAS approved Manufacturer Stock Code:SR1-03-05214 EAN Code:5060106373786 Sub-Category:Scale Reducers Brand:Adey Range:Electroscale Category:Water Treatment Type:Electrolytic