Ximax Supra Vertical Designer Radiator White (W)550mm (H)1800mm.Discover our stylish range of high quality designer radiators specially developed to blend in with the interior of your home. A great designer radiator should match the style of interior whether that be minimal and understated an ultra-modern contemporary or a more timeless traditional style. All of our designer radiators have been crafted to a high quality and many feature state-of-the-art technology.