The 4" WFR BF1-040-8889 by Pratt Industrial is a reliable wafer-style valve designed for efficient flow control in various applications. Made from durable NY-11 material, this valve is engineered to withstand high temperatures and pressures, ensuring optimal performance. With a compact design, it fits seamlessly into tight spaces while maintaining a strong seal. The valve's 4-inch size is perfect for medium flow systems, and it complies with industry standards for safety and reliability. Ideal for use in water treatment and industrial processes, this valve is a trusted choice for engineers and technicians.