Sicce - Utility Ultra Zero Pump - 3000l/hr - 3.1mOverview The Sicce Utility Ultra Zero Pump is designed for pumping water without large debris content. It is fully submersible and is made to sit at the bottom of your nutrient tank. General Information This incredibly powerful pump can drain your tank to a depth of 2mm! This will ensure there is no build up of sludge, which can lessen the risk of harmful pathogens colonising the space. Benefits 3 4" discharge fits standard garden hose Thermoplastic