The Watts Regulator 4 LFF115-74 150 S B is a precision flow control valve designed to manage water flow effectively. This model features a 150 psi pressure rating and is constructed from high-quality materials for durability and performance. Its compact design allows for easy installation in various plumbing systems, ensuring compatibility with standard connections. The valve is ideal for use in irrigation, HVAC, and industrial applications, providing reliable performance and compliance with industry standards. With its efficient design, the LFF115-74 helps maintain optimal flow rates, enhancing system efficiency.