The FS7-4WLJ Flow Switch is a 1-1/4 inch BSTP flow switch from McDonnell Miller, designed for efficient flow monitoring in various systems. This switch is built with high-quality materials to ensure durability and long-lasting performance. It operates effectively under a range of pressures and temperatures, making it suitable for both commercial and industrial applications. The FS7-4WLJ is compliant with relevant industry standards, ensuring safety and reliability. Its compact design facilitates easy installation, and it is compatible with a variety of piping configurations, making it a versatile choice for flow control.