The 4STEM-6TUBE Straight Reduce/Expand Fitting from Fittings Unlimited Inc is designed to facilitate smooth transitions between different tube sizes. This fitting features a 4mm stem and a 6mm tube connection, making it ideal for various fluid transfer applications. Constructed from high-grade materials, it offers excellent durability and resistance to pressure. This fitting is perfect for use in hydraulic systems, ensuring compliance with industry standards for safety and performance. Its straightforward design allows for easy installation and maintenance.