The SEALFAST 4" Fig 400 Thread Hammer Union is built for high-pressure applications, rated up to 4000 PSI. This fitting features a threaded design for secure connections, making it ideal for oil and gas, water transfer, and other demanding environments. Constructed from durable materials, it ensures reliability and longevity under pressure. The 4" size is compatible with various piping systems, and it meets industry standards for performance and safety, making it a trusted choice for professionals in the field.