The Watts Fluidair R119-04J/N is a 1/2" pilot operated regulator designed for precise pressure control in fluid systems. This regulator features durable construction with high-quality materials, ensuring reliability and longevity. It operates efficiently under various conditions, making it suitable for a wide range of applications. The compact design allows for easy installation in tight spaces, while the 1/2" connection ensures compatibility with standard piping systems. Ideal for industrial and commercial use, this regulator meets industry standards for performance and safety.