Farm Innovators 3 gal. Plastic Heated Poultry Fountain HPF-100
Product Review (submitted on December 3, 2013):
It does work great but is a hassle to fill it the way they say. Why not put the hole (bigger than the current one that is on the bottom) on the top? Then you could secure the base and fill it from the top instead of the bottom and then trying to flip it over without losing all the water.