Laser Klassic Radiators Mild Steel Laser Klassic Radiators are available in 22 Horizontal and 9 Vertical sizes, 2,3,4 and 6 columns , in Gloss white, Raw Meta, and Textured Grey, RAL Colours are available to special order. Please contact our sales office for details .image showing three column radiator. Image for illustration purposes only. Manufacturers 5 Year Guarantee.