The SEALFAST 4" Self-Locking Shank Coupler is engineered for secure connections in fluid transfer applications. This coupler features a self-locking mechanism that ensures a tight fit, preventing leaks and disconnections during operation. Constructed from durable materials, it is designed to withstand harsh conditions and provide long-lasting performance. Ideal for use in agricultural, industrial, and irrigation systems, this coupler meets industry standards for quality and reliability. Its easy installation process makes it a practical choice for enhancing system efficiency.