... 12 meter. The pump is made of nylon, which resist to acid, alkali,corrosion and freeze. C. Long service life of ... charge battery can be continuouslyused 5.5 hours. Battery uses solid-state, maintenance-free and high reserves battery, store power big, which ... litre. The tank made of the special material which resist to acid, alkali,corrosion and have good ductility and anti- aging ...