Adjustable Flow Mini Regulator CGA-870/ 0-8 LPMFeatures: 12 Regulator dial settings - 0 to 8 lpm. Pressure gauge reads to 3000 PSI CGA-870 cylinder valve compatible Pin indexed for easy mounting No tools necessary Barbed outlet Corrosion proof aluminum with brass interiorSettings: 0, .25, .5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8