The N2-Blast - Corrosion Inhibiting System generates and introduces up to 99.9995% pure Nitrogen into Dry or Pre-action Fire Protection Systems. Oxygen, a key contributor to the corrosion reaction, is displaced from the piping through the AutoPurge SystemT. The N2-Blast effectively inhibits Electrochemical, Galvanic and Microbiologically Influenced Corrosion (MIC), as well as freeze-ups and ice plugs, avoiding costly maintenance, repairs, and pipe and/or system replacement. South-Tek Systems utilize Membrane or Pressure Swing Adsorption (PSA) technology to effectively separate Nitrogen molecules from the air. "Type 2" Models use a simple, easy-to-service wall-mounted air flow design. PSA technology, used in "Type 1" and "Type 3" Models, is extremely efficient, and provides maximum Nitrogen output and system longevity. Systems are available in pipe capacities from 650 gal. to 20,000 gal. Learn more at www.southteksystems.com