This lot of 2 Nibco 1/2" stop valves is a great addition to any industrial or plumbing setup. These valves are designed for manual operation, making them reliable and easy to use. With their sturdy construction and high-quality design, they are sure to last for years to come. Perfect for use in a variety of applications, these valves are a must-have for anyone in need of reliable and durable plumbing equipment.