soeben auf der Herstellersite gelesen:
The EK-XRES Revo D5 series features a fully rounded see-through acrylic design thus offering stunning looks and greater usability. This allows installation at any angle within 360° of rotation. Special rubber shock absorber is used to de-couple the main pump body from the mounting clip for silent operation, free of vibration induced noise. Additionally, horizontal and vertical positioning are supported for easier tube routing possibilities.

Also ja es wird beides unterstützt, horizontal und vertikal!