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 Inverter technology in pump application and advantages. 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.