1) 4 way adjustable skimmer gate prevents fish from entering filter
2) Quick change prefilter makes cleaning simple
3) Heater or Optional Protein Skimmer chamber
4) Bio-Aire Driptray distributes water evenly over biological filtration and enhances aeration
5) High surface area biological media
6) Air-injection nozzle
7) Media tray for chemical and carbon filtration
8) 350 gph submersible pump
9) Clear slot to view water level in filter
10) Turbulence manifold for circulation unsurpassed by any other built-in filter
