Arrow Pneumatics R353 is a 3/8 in NPT pneumatic air pressure regulator with an aluminum body that provides reliable downstream pressure control in compressed-air systems. It features an adjustable output range of 5 to 125 psi and 3/8 in NPT inlet and outlet ports for easy integration with standard air lines; many variants list a maximum inlet pressure of 250 psi and a flow capacity up to 80 SCFM. This regulator is commonly employed to regulate pressure for pneumatic tools, automation equipment, and spray operations in industrial and workshop settings.
