This Miraco Livestock Waterer 44 gallon is both a thermos and a watering hole for your livestock. When the water enters the MiraFount and the closures float up and seal off the drinking ports, the MiraFount becomes a thermos for livestock. Whenever an animal drinks, it removes a quantity of water which is immediately replaced by ground water through the valve. This exchange of water keeps the water warm, even in the coldest climate, and cool in warm climates. This particular tank can water 150 head of beef cattle or 60 dairy cows. Includes stainless steel anchor bolts and removable top end panels.