Deltec NFP616 Nitrate Filter
Deltec NFP Nitrate Filters are a simple and efficient way of reducing the nitrate level in your aquarium.
The NFP616(P) is suitable for saltwater and freshwater aquariums between 1500 and 5000 litres.
A supplied membrane bag is filled with a nitrate-reducing carbon source 'nitrate fluid' and installed inside the reactor as a slow-release system