The 27R4-G is a 3/8" regulator designed to accurately control air pressure in pneumatic systems. Equipped with an integrated gauge (-G), this regulator allows for precise monitoring and adjustment of the output pressure, ensuring consistent and optimal performance of your pneumatic tools and equipment. The regulator provides stable pressure regulation, contributing to the longevity and efficiency of connected devices. Its durable construction is suitable for various industrial applications, offering reliable pressure control for air tools, pneumatic cylinders, and other air-powered equipment. Adjusting the pressure is straightforward: simply turn the adjustment knob to achieve the desired output.