

1/2" Air Regulator with Gauge – 100 SCFM, 250 PSI Max, 5–125 PSI Range, Aluminum Body, 3-Position Locking Knob, Self-Relieving, Tamper-Proof Cap
R354G
The Arrow Pneumatic 1/2" Air Regulator with Gauge (Model RG-12A) is built for high-flow, high-precision air control in demanding industrial environments. Capable of handling 100 SCFM and 250 PSI max inlet pressure, this regulator ensures consistent, stable pressure delivery to air tools and machinery requiring dependable performance.
The micro-finished brass valve seat eliminates reduced pressure creep, and the reinforced diaphragm maintains pressure accuracy over time—even under frequent cycling. Its 3-position non-rising adjustment knob allows secure adjustments: pull to adjust, push to lock, and detach to make tamper resistant—ideal for shared workspaces or production lines.
With a self-relieving design, the regulator safely vents excess downstream pressure without operator intervention. The built-in gauge offers at-a-glance monitoring, while the aluminum housing provides long-term durability. The unit installs easily via panel mount, inline, or modular configurations, and includes a tamper-proof cap for added protection.
Designed with replaceable internal parts, this regulator is not only reliable but cost-effective to maintain. The Arrow Pneumatic 1/2" Regulator is the trusted choice for professionals needing high-flow control, tamper resistance, and installation flexibility in a robust package.