700 gallon w-series stock tank is rotationally molded with high quality, FDA approved, UV protected, impact resistant poly to ensure uniform thickness & strength for unrivaled durability. All edges have been rounded for animal safety. The onepiece construction eliminates cracking & splitting that's common in plastic-welded, twopiece tanks. Molded-in leak-proof 1 1/4" fnpt aluminum drain insert ensures your drain will never rust, sun rot, leak or fail. The poly drain plug can be removed from the insert with a wrench & replaced with a pressure valve or stock tank Deicer. If the stock tank gets a small leak due to unforeseen circumstances, such as a bullet hole, it can be braze welded with a common Butane torch to fill the hole. Industry leading 5 year warranty that is backed 100% from the date of purchase. Black tank color.