Heliox regulators are constructed of anodized aluminum bodies with all brass high pressure conduits. These units are available for various helium/oxygen blend ratios and tank connections. Heliox regulators are made in the US and are fully serviceable for extended life. The flow rate and settings for all heliox regulators are as follows: FLOW RANGE 0-20 L/min FLOW SETTINGS 0 | 1.0 | 2.0 | 3.0 | 4.0 | 5.0 | 8.0 | 10.0 | 12.0 | 15.0 | 18.0 | 20.0 Brown anodized aluminum body for lightweight design Easy to read 1.5 inch gauge protected with durable cover Single-piece body construction provides a robust, long-lasting regulator Flame arrestor manufactured with sintered bronze filter Click style regulator ensures precise selection of flow rate Meets ASTM G175-03 standards for promoted ignition & adiabatic compression Fully serviceable regulator Conforms to CE and ISO 10524-1 standards All models available with brass bodies