Engineered and manufactured to the highest tolerances in the industry, and deliver precise flow rates at all settings. Essex™ premium regulators feature anodized aluminum bodies with all brass high pressure conduits. Our five year warranty covers defects in material or workmanship. In addition, all premium oxygen regulators are made in the US and are fully serviceable for extended life. Extended body accomodates humidifier Green anodized aluminum body for lightweight design Ergonomic five-lobe knob for easy hand tightening Easy to read 1 ½ gauge protected with durable cover Single-piece body construction provides a robust, long-lasting regulator Flame arrestor manufactured with a 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; See page 15 for replacement parts Conforms to CE and ISO 10524-1 standards All models available with brass bodies