Norgren R06-221-NNEA Non-Relieving Water/Air Regulator 1/4 FPT Features:
The Norgren R06-221-NNEA water and air pressure regulator features a compact corrosion resistant design. The R06-221-NNEA has a snap action pressure adjusting knob that locks the pressure setting when the knob is pushed in. This regulator is suitable for use on air or water service.
Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C)