The NANPU 1/4" 3/8" 1/2" air pressure regulator is engineered for compressed air systems, featuring a rugged 150 psi pressure gauge enclosed in a durable steel protective housing to ensure reliable and accurate pressure monitoring. This regulator enables precise control of compressed air pressure, serving as an essential component for maintaining optimal performance across diverse industrial and commercial applications. The 1/4" 3/8" 1/2" connection port ensures compatibility with a wide range of air lines and equipment, facilitating seamless integration into existing compressed air infrastructures.