The Ingersoll Rand ARO R37121-600 is a compact 1/4 in NPT air regulator from the 1000 Series that delivers precise, relieving pressure control from 0 to 140 psi and is furnished with a flush‑mount gauge. Built with an aluminum body, it accepts up to 250 psi inlet pressure and provides about 59 CFM of flow, making it suitable for regulating pressure to pneumatic tools, actuators, and clamps in industrial or workshop settings. With standard 1/4" NPT ports and a knob control, it supports straightforward installation and reliable operation in compressed‑air systems where precise downstream pressure is required.
