Modline Rainwater Tank Dimensions: 800mm x 1700mm x 1560mm (ML-0800-1700-1560). Kingspan's 2000 Litre Modline AQUAPLATE Steel Water Tank with modern flat ends provides water for small gardens and drinking purposes. AQUAPLATE is a BlueScope steel specifically designed for use in rainwater tanks and storing drinking water. The corrugated steel tank has an inner poly layer fabricated to a galvanised steel substrate, while the outer layer consists of a COLORBOND laminate coating.