The 1-1/2" Shank Coupler Sel-Locking Brass is designed for secure connections in high-pressure applications. This coupler features a self-locking mechanism that ensures a tight fit, preventing leaks during operation. Constructed from durable brass, it offers excellent corrosion resistance and longevity. The 1-1/2" size is compatible with standard hoses and fittings, making it a versatile choice for firefighting and industrial applications. This coupler meets industry standards for safety and performance, making it a reliable component for any system.