The 12MJ-12FJX-4FB Gauge Port by Fittings Unlimited Inc is engineered for optimal performance in hydraulic systems. This fitting features a 12mm male JIC to 12mm female JIC connection, providing a secure and leak-free interface. Made from high-grade materials, it is designed to withstand high pressure and temperature, ensuring longevity and reliability. This gauge port meets industry standards, making it suitable for various applications, including automotive and industrial uses. Its robust construction and precise dimensions make it an essential component for professionals looking for quality fittings.