Manual Water Pump,For 3,5 gallon bottle( 58mm neck size) New PP ... use SKL Manual Water Pump? 1.No batteries required. 2.No drips or leakage. 3.Great for the shed, cabin, ... adjustable length to suit different vessel. 6.Spare brush for easy cleaning. 7.Backup extension suction tube. 8.Stable ... of such kind pumps in China,both hand pump and electronic pump,for 5 gallon bottle or small bottle,like 5Li, ...