The expansion tanks in the ULTITUBE series are equipped with a tube made of borosilicate glass, which, in contrast to the Plexiglas often used for tube expansion tanks, has a very high degree of hardness and scratch resistance, very low thermal expansion and excellent chemical and thermal resistance. The glass tube has an outer diameter of 65 mm and a wall thickness of 5 mm. Both ends of the glass tube are firmly connected to metal rings made of black anodized aluminum, which do not come into contact with the cooling medium. The base and lid of the ULTITUBE series are made of durable acetal and screwed to the glass tube. This means that a large opening is available for filling the expansion tank after unscrewing the lid. An RGBpx-compatible LED ring with 13 individually addressable LEDs is included in the scope of delivery and can be used to effectively illuminate the expansion tank. An Aqua Computer control unit with RGBpx output is required to operate the LED ring (e.g. D5 NEXT, not included in the scope of delivery). At the end of the strip there is a connector for connecting another RGBpx component. For additional fastening of the expansion tank in the upper area of the glass tube, a rubber fastening ring with a stainless steel insert is included in the scope of delivery. Fastening material for mounting on a side/rear wall or for standing mounting is included in the scope of delivery. Technical data: Coolant capacity: approx. 350 ml Connection threads: G1/4 Dimensions: approx. 72 x 72 x 200 mm (All dimensions without mounting material) The number 50/100/150/200 in the Ultitube series product name refers to the length of the glass tube in millimeters. Scope of delivery: One reservoir RGBpx compatible LED ring RGBpx cable, length 50 cm Rubber fixation ring with stainless steel insert Mounting material Model: 34127