ANSUL RED LINE cartridge-operated extinguishers are the premium firefighting units preferred by safety directors in high fire-risk industries. Cartridge-operated means increased reliability, on-the-spot recharge and ease of service. The RED LINE extinguisher has set the standard for reliable fire protection in many industries and applications including refining, petrochemical, oil and natural gas production, mining, transportation, utilities, metal processing, paint process areas, welding areas, material storage areas and many others.