Name: Pig drinking bowl        Material: 304 stainless steel        Connection size: internal thread 20mm (1/2")        Product applicable objects:        S: Suitable for 1.5~7.5 kg        M: Suitable for 7.5~30 kg        L: Suitable for 30~200 kg        XL: Suitable for 150~200 kg                 Packing: 1 Pcs                 Product features:        Durable, prevent scratches, touch-type switch, 360-degree water, reduce feeding costs, convenient environmental protection, saving water and effort                 Working principle:         When the pig drinks water, the pressure bar is pushed, the pressure bar pushes the water outlet valve, and the water flows into the water cup from the water pipe        After the drinking water, the pressure spring is reset, the water channel is cut off, and the water supply is stopped.                 Tips:        Please allow 1-5mm error due to manual measurement. pls make sure you do not mind before you bid.