The 4MJ-3MB STR from Fittings Unlimited Inc is a high-performance fitting designed for efficient fluid transfer. With a 4MJ to 3MB connection, it is suitable for a variety of applications, including plumbing and industrial systems. Constructed from durable materials, this fitting offers excellent resistance to corrosion and wear, ensuring longevity. It adheres to ISO and ANSI standards, providing assurance of safety and reliability. Its compact design allows for easy installation, making it an essential component for any professional's toolkit.