The FS7-4L Flow Switch by Verne Simmonds Co McDonnell Miller features a 1-1/4 NPT connection, designed for accurate flow monitoring in various industrial applications. This flow switch is built with high-quality materials, ensuring durability and compliance with industry standards. Its compact design allows for easy installation and maintenance, making it a versatile choice for fluid management systems. The FS7-4L is essential for ensuring proper flow rates, enhancing system efficiency, and preventing potential failures in HVAC and process control applications.