– The Sunsun JTP frequency variation is a strong submersible water pump for freshwater and saltwater aquariums. – Energy efficient than the normal electronic induction motor pumps, more than 50% energy saving during working hours. – Inverter technology to ensure smooth rate of flow and maintain the resistance of motor under different conditions, suitable for fresh water and salt water. – Pump has shaft made of high strength wear-resistant material, long life, ultra-quiet, simple cleaning and tool-free disassembly