The anti-radiation external black aluminum covering on RAKtherm's Reinforced Stabi UV Pipes is a UV-resistant component that makes it more durable and ideal for exposed and open air piping installations, even in direct sunshine. With a noticeable reduction in linear expansion rate of 75% and a 20% rise in flow rate. The outstanding anti-UV qualities have been evaluated and confirmed to be great in piping network performance for a variety of applications.