The Alphacool ES 4U Reservoir with D5 top is a development for the Enterprise Solutions series. It has an integrated pump top for powerful D5 pumps. The combination of pump top and reservoir was designed to be mounted directly in the front of 4U servers. The positioning of the reservoir in the enclosure and the acrylic cover used make maintenance and control of the water circuit much easier.

The expansion tanks of 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 hardness and scratch resistance, a 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.  The Pro version of the ULTITUBE D5 come with a 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.

The expansion tanks of 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 hardness and scratch resistance, a 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.  The Pro version of the ULTITUBE D5 come with a 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.