Expansion Vessel SizeNot ApplicableIncludes Expansion VesselNoYears Guaranteed25 Years Against Manufacturing DefectWidth545mmTypeCylinders - Indirect UnventedToilet Cistern CapacityFTW--Maximum Operating Pressure7MaterialDuplex Stainless SteelHeight1203mmEnergy Efficiency RatingCDiameter545mmDepth545mmCoil TypeTwin ZoneCapacity250 LSupplier Part NumberESPTN0250Brand NameUK Cylinders