The 4MOFS-4FOFSX-4FB Gauge Port from Fittings Unlimited Inc is a precision-engineered fitting designed for effective pressure measurement. With a 4mm outer diameter, it is compatible with various systems requiring reliable connections. Made from durable materials, this gauge port is built to withstand harsh conditions, ensuring longevity and performance. It complies with industry standards, making it suitable for both commercial and industrial applications. The compact design allows for easy installation in tight spaces, providing a dependable solution for pressure monitoring.