Also due to its pressurised design allows you to sit the reactor below the water level... Allowing the nitrate reactor to sit in the cabinet while pushing the effluent back to the raised aquarium above. NA350 Reactor, Syringe x 2 (for Manuel Operation), Control Valve x 2, and 2m of piping. Dimensions : Height Footprint Column Dia. The item "Nitrate Reactor NA350 (1500l).Alcohol Based" is in sale since Sunday, October 17, 2010. This item is in the category "Pet Supplies\Fish & Aquarium\Filters". The seller is "bosshogthemasterpig" and is located in Sleaford. This item can be shipped worldwide.