The 3" Self-Locking Brass Shank Coupler from SEALFAST is engineered for reliable fluid transfer. Constructed from high-quality brass, this coupler features a self-locking design that ensures a secure connection, preventing leaks. With a standard 3" size, it is compatible with various hoses and fittings, making it suitable for industrial and agricultural use. This coupler meets industry standards for safety and performance, providing assurance in reliability. Its durable construction ensures longevity in demanding environments.