That all SBH radiators are manufactured and tested in accordance with EN442 and comply fully with the new CE marking regulations. (Our radiators are tested for heat output and pressure resistance by the UKs recognised independent test centre, BSRIA Ltd). That we offer a range of colour and electrical options, valves and grab bars. To make your project complete, choose accessories from the extensive Zack stainless steel range (ask your retailer for a booklet). That SBH radiators carry a lifetime guarantee and are manufactured from grade 304 stainless steel tubes with a wall thickness of 1.2mm. SBH provides its unique guaranteed P Rating system to help you make the right choice of radiator for your bathroom or kitchen.