1L Coolant Overflow Tank, BlueAlthough it's often overlooked, a durable coolant overflow tank is a crucial component of any cooling system. Leaks within the overflow system can result in air entry into your coolant, which ultimately leads to overheating. Upgrade your plastic overflow tank with Mishimotos Universal 1 Quart Coolant Overflow Tank. Our tank is constructed from durable 3mm thick aluminum, featuring stunning precision TIG welds. In addition, this overflow tank includes