The 5" 758 CI 125# W/1/8 PF from Watts Regulator Company is a precision pressure regulator designed for optimal flow control in various applications. With a maximum pressure rating of 125 PSI, this model is suitable for both residential and commercial use. Its durable construction ensures long-lasting performance, while the compact design allows for easy installation in tight spaces. This regulator is compliant with industry standards, making it a reliable choice for HVAC and plumbing systems. The 758 CI series is recognized for its efficiency and reliability, ensuring consistent performance.