Duplex stainless steal - extremely long life Large diameter, smooth bore coil technology. Provides quiet operation, reduces build-up of scale and aids in long term efficiency through automatic descaling Full range of of un vented tank kits available 25 year guarantee on shell and 2 year guarantee on all other parts Easy clean white powder coated steel casing Manufacturer Stock Code:0010019228 EAN Code:4024074760000 Length:800 mm Width:800 mm Height:1900 mm Weight:140 kg Sub-Category:Indirect Made to Order:No Brand:Vaillant Manufacturer Part Number:0010019228 EAN Number:4024074760000 Range:uniSTOR Category:Cylinders Type:Vented