NextReef had their new NSX line of skimmers on display at MACNA and we were quite impressed by how well built it was.  Not for the faint of heart, these skimmers are BIG, clearly for a large tank or even a commercial operation.  The parts were well milled and the knob for adjusting the level within the unit moved freely.  We didn’t see the unit running on an actual aquarium but from how well built it was we would assume that maintaining it should be pretty straightforward.  The NSX line of skimmers will be available for sale with major online retailers in the next month.  LINK