This Aquacomputer PCI pass through Connector consists of only three components and can be installed hassle free! Simply fixate the slot cover like and other. The inner part is then connected to the outer part and screwed together. They seal safely with two O-ring seals. Use G1/4" fittings of your choice. The neighboring slots are not obstructed by this slot cover! We recommend using the lowest free slot for easy tubing management. The additional cable feedthrough can be used for a round cable up to a diameter of 6.5 mm, and a rubber ring protects the cable in the bracket.