Fixed Pressure Regulator This regulator is used to attach to a nitrous bottle, to regulate air pressure from a CO2 or nitrous bottle to be used in an air shifter system. You get 300-400 "shifts" from a 1# nitrous bottle.Also works for C02 Boost ControlThis fixed pressure regulator features CGA320 cylinder connections with one 1/4" F.NPT high-pressure outlet and two 1/8" F.NPT low-pressure ports. Pre-set options include 100, 125, 150, 200, and 475 PSI configurations. The innovative design enables field adjustment across 50-500 PSI by simply loosening the PSI lock screw, turning the adjustment knob, and securing the allen screw—no spring replacement or shimming required. Ideal for managing multiple components from a single gas source, it accommodates air, CO2, nitrogen, and nitrous oxide applications with professional-grade reliability. Specifications: Precision Machined Lightweight Aluminum Black Anodized High Flow Capacity 3000 PSI maximum inlet pressure CGA320 Inlet Cylinder Connection, One additional 1/4" F.NPT port Factory preset outlet pressures 100, 125, 150, 200 & 475 PSI Range of outlet pressure:50-500 PSI (2) TWO 1/4" Female NPT Inlet (High Pressure) One has a CGA320 Inlet, (2) TWO 1/8" Female NPT Outlet (Low Pressure)