The 3" Male Coupler Self-Locking Brass by SEALFAST is designed for secure connections in various applications. This durable coupler features a self-locking mechanism that ensures a tight seal, preventing leaks and enhancing safety. Made from high-quality brass, it offers excellent corrosion resistance and longevity. With a standard 3" diameter, it is compatible with a range of hoses and fittings, making it ideal for industrial and commercial use. The coupler meets industry standards for performance and reliability, ensuring it can withstand demanding environments.