The 150 PSI Heavy Duty Female Aluminum Nipples are engineered for high-performance applications, featuring a 3/8" hose to 1/4" female NPT connection. Constructed from lightweight yet durable aluminum, these nipples are designed to withstand high pressure while resisting corrosion. The female NPT threading allows for easy connection to standard fittings, making them ideal for pneumatic and hydraulic systems. These nipples meet industry standards for safety and reliability, making them a perfect choice for automotive, industrial, and construction applications.