1.High sensitivity 2.Imported good stainless 3.Low water pressure,scientific water flow 4.Practical inexpensive 5.Sanitary features of ball valve typed nipple drinking trough:High sensitivity Fast take-down, easy cleaning, no need for glue and bonding Imported good stainless steel, wear resistant, poly resin, APS, durable, available for 20 yearsLow water pressure, scientic water flow, applicable ...