Brand new Maxspect SK400 protein skimmer for reef aquarium

Brand new Maxspect SK400 protein skimmer for reef aquarium. I bought this from a fellow reefer last week, who had bought this about a year ago for an upgraded tank build that they never got around to doing. This skimmer has only been out of the box for the pictures, and has never been in any water. These are usually around £380 on the internet. I’m gutted that I’m not going to be able to make use of it, as i feel it’s too big for my system. Collection only or delivered at buyers expense.