To secure the longer Ultitubes at the top there is a Aquacomputer holder for the upper part of the Ultitubes that is sold separately or included. It is supposed to hold the Ultitube's upper part and prevent the longer models to wobble. Unfortunately this Holder can not be mounted directly on fan brackets when mounting the Ultitube vertically.
These mount models allow to fasten this upper mount to a 120mm or 140mm fan mount when using the Ultitube fan mounting bracket for 120mm or 140mm fan brackets in conjunction with the Aquacomputer holder for the upper part of the Ultitubes.
Designed for standard screws commonly used to mount pc fans.