High-quality brass construction provides superior resistance to abrasion and corrosion. Features 1/4" (6mm) barb to 1/8" male thread connection for secure hose attachment. Designed to withstand burst pressures in plastic tubing with a temperature range of -40°F to 160°F. Ideal for temperature control circuits, pneumatic systems, vacuum applications, and fluid system testing equipment including lubricant and coolant lines.