... 4.Non-Pollution Noiseless NEWSKY 6SPSC Low Water Depth/ High Water Flow DC Solar Power Water Pump Feature:1. Compact structure, high ... against under-voltage, over-voltage,over-flow, overload, waterless , automatic recovery ,controlling water height as demand.2.Easy installation, maintenance ... -free, safe and reliable. Water depth :1-25 m ,Max flow: 60 m³/h. 3. Adopt stainless ...