Brower MPO12N 12-Gallon Unheated Poly Waterer, Red MPO12N is a red poly 12 gallon unheated waterer that waters up to 150 head of most any species 100% poly construction, molded with the most effective ultraviolet inhibitor, tough enough for years of outdoor use 2 large drink openings 8-inch x 14-inch each, drinker wells are 14-inch deep allowing most any animal to drink naturally