The Nitratereductor NR 400 is a completely sealed biological filter for aquaria up to 100 gal. It is operated at a very low flow rate. The filter can be installed in almost any position, inside or outside the aquarium or the cabinet. The water flow is provided by connecting to a standard canister filter, power head or by pass circuit. The filter medium – Deniballs – is consumed and requires replacement every 9 to 12 months dependent on the load. For optimum control we recommend the filter be used in conjunction with an Aqua Medic mV controller or mV computer. The filter is already equipped to accept our specific pressurised electrode.
Dimensions: without electrode (l x w x h): app. 5.8 x 4 x 14.5 in.