The oase aquamax dry is especially designed for dry installation this powerful filter and watercourse pump is very compact and thus saves space thanks to the stable base it can be safely dry installed below the water levelr when using a gravity fed filtration system the aquamax dry pumps are the best choice to do the jobr product characteristicsr r the dry pumps can be used below or above water levelr very quiet in operationr 2 additional stainless steel hose clipssr asynchronous motor techn