The 4MJ-5MB STR from Fittings Unlimited Inc is a reliable fitting designed for seamless connections in fluid systems. Featuring a 4MJ to 5MB size, it is perfect for various applications, including plumbing and industrial setups. Constructed from durable materials, this fitting ensures long-lasting performance and resistance to wear. It complies with ISO and ANSI standards, providing peace of mind regarding safety and reliability. Its user-friendly design allows for quick installation, making it an essential component for any professional toolkit.