The Northwest Fluid HFCD221057 5/8" Hose Barb Valved In Line Coupling Insert is a high-quality fitting designed for hydraulics, pneumatics, pumps, and plumbing systems. Made by Northwest Fluid, this coupling insert features a 5/8" hose barb for easy connection of hoses and lines. The valved design allows for convenient in-line coupling and ensures a secure fit for reliable fluid transfer in industrial and commercial settings. With its durable construction and efficient functionality, this product is a valuable addition to any plumbing or hydraulic system.