Expansion Vessel SizeNot ApplicableIncludes Expansion VesselNoERP (Energy Efficiency)YNumber of Immersion Heaters2Years Guaranteed25 YearsWidth550mmUsageDesigned For New-Build Housing (Unvented, Mains Pressure; Pre-Plumbed)TypeCylinders - Indirect UnventedMaterialDuplex Stainless SteelHeight1990mmFuel TypeExternal Source (Boiler)Energy Efficiency RatingCERP RatingCDepth1990mmConnection Size22 mm (Two Port Zone Valve)ColourWhiteCoil TypeCorrugated CoilCapacity300 LSupplier Part NumberPROIN300PPRange DescriptionPRE-PLUMBEDManufacturer Model NoPROIN300PPBrand NameGledhill