Designed for versatility, durability and optimized heat output, the Slenderized radiator is the perfect choice for hot water or steam heat delivery. Offering a sectional design which provides lengths of 7 to 84 in, Slenderized radiators are adaptable to virtually every installation requirement. Made of durable cast iron, these radiators not only provide warm and soothing heat, they also retain heat and provide extended warmth when the boiler is not running. Cast iron construction also virtually eliminates the expansion and contraction sounds associated with other types of radiators, making your home both quiet and comfortable.