... design, accurate position,avoid gear and switch.3, Multi-assembling, easy to install.4, Float ball structure, no leakage, especially ... meters, heat energy meters, air-warm valve.2, HVAC and fire work.3, Water equipment, uto-controlwatersystem, industrial mini-autoequipment4 ... water heaters,washing machins, water heaters, industrial CWX-60mm(1/2") horizontal motorized ball 3-6V,12V,24V,for watermeter