The Advance Series is designed for the serious hobbyist with a very unique three water channel design. In addition to all the benefits of our 3rd generation refugium sump, the advance series also features a third compartment that allows hobbyist to add bio-balls or matrix to their system for additional filtration. The unique Eshopps Channel Design (ECD, Patent Pending) enables us to fit three independent compartments into one compact size sump while providing enough space for each compartment.
Eshopps Channel Design (ECD, Patent Pending)
Unique Three Water Channel
Large Skimmer Compartment & Viewable Refugium in Front
Built-in Probe Holder & Float Valve