... the permanent-magnet in-phase motor, this pump is high-efficiency, energy-saving and durable. feature: 1.driven by the ... functional design, various purposes in a machine----- pumping, fountain and filter 3 in 1. with a stream control valve set in ... applicable scope: suitable for water-pumping, water-circulation, water crude-filter of various aquariums and seafood pools,and various water-pressure ...