The 4FOFS-4MOFS STR Blank from Fittings Unlimited Inc is designed for use in fluid systems where a closure is needed. This blank fitting maintains a 4mm size, ensuring compatibility with standard fittings. Made from durable materials, it provides long-lasting performance and resistance to wear. The blank fitting meets industry standards, making it suitable for various applications, including hydraulic and pneumatic systems. Its compact design allows for easy installation, while the robust construction ensures a secure fit. Use this blank fitting to effectively seal off unused ports in your system.