The kind of valves you need depends on the position of the radiator pipes. If the pipes on your radiator come up from the floor, you require straight valves. If the pipes on your radiator come out of the wall, you require angled valves. The valves pictured are just one of many styles available. BestHeating has an extensive and eclectic range of both straight and angled valves to choose from, so you can be sure of finding the perfect match for your ladder style heated towel rail and create a coordinated, seamless look.