Mono-gatari Automatic Waterer Water Bowl Farm Livestock Stainless Steel Animal Drinking Water Bowl for Pigs Horse Cattle Goat Sheep Dog (with Drainage Hole, with Float Valve)Float Design: Use the floating ball to control the water inlet and outlet switches to achieve a constant water level effect Safety and Hygiene: Automatic water bowl uses 304 stainless steel as raw material to provide guarantee for the safety of animal drinking water Upgraded Version: There is a drainage hole at the bottom to release residual water; 2 holes at the back are convenient to attach this waterer to the wall Application: Large automatic