Quartz Glass Sleeve/tube, Suitable for Vorton 18. The quartz sleeve/tube protects the UVC lamp and the electric from the pond water and enables the uv light to clear the water. From time to time the quartz sleeve can get covered in slime and limescale which is difficult to remove. A new glass sleeve will ensure that the uvc lamp can work to its full potentional.
-Fits Vorton 18 UV Clarifier