Boston Gear En72220 Air Regulator

The Boston Gear EN72220 Air Regulator is a compact aluminum regulator that reduces incoming compressed air pressure to a user-set downstream level, helping protect tools and actuators and stabilize pneumatic circuits. It is designed for standard 1/4 in NPT connections with inlet and outlet ports sized at 1/4 in NPT and a straight-through flow path. The regulator body is aluminum and is rated for a maximum operating pressure up to 300 psi, with a flow capacity listed around 144 CFM in major catalog entries, making it suitable for moderate-demand applications. The EN72220 is available without a gauge, while the gauge-equipped version is cataloged as EN72220-G, giving operators an inline reading of downstream pressure. Common applications include feeding pneumatic cylinders, grippers, and other air-powered tooling in automation or manufacturing environments where stable downstream pressure and straightforward setup are important.