Thrifty King insulates the water so well that you can make it through the winter without supplying heat in many areas, and it takes little electricity in those areas where the winter is severe or energy free requirements are not met. The water is completely surrounded by fully insulated polyethylene plastic – including an insulated elliptical enclosure covering the drink areas. The covered water keeps the water cooler in summer and reduces loss of water due to evaporation. The closure also protects against mosquitoes breeding, lowering the risk of the spread of West Nile Virus. The CT 1 is single drink automatic waterer for cattle. ThermalEqualizer design in patented drinking well eliminates cold spots in water storage Elliptical closures tip easily so animals can drink without resistance, unlike round balls which take a great deal of pressure Easy access for easy maintenance High capacity valve, protected from cold by patented drink well Finger-lift service cover; No tools, springs, or clips Optional electric heat, immersion heater and supply line heat cable 10 year warranty Length 28in/71.12cm Width 20.3in/51.56cm Overall Height 25in/63.5cm Shipping Weight 61lb/27.67kg Drinking Height 19in/48.26cm Capacity 11.2gal/42.4L Herd Capacity 30 beef