Lc 143 is specially formulated for use in systems that are Constantly exposed to air, such as vented air to pressurized Systems providing corrosion protection even in systems that Are not tight. It reduces maintenance costs by keeping Exchangers, air handling units and zone valves free of Corrosion clogs. It also reduces corrosion insulation and System damage. Lc 143 contains boron nitrate that protects Against oxygen and acid attack, works well in any closed System. Recommended for any hot water boiler or recirculating Or closed loop system. Application Can be added to a system either manually or with a pot feeder. If the Treatment dosage is less that the capacity of feeder, fill up the feeder with Tap water to prevent air on treatment. Not to be used in electric Steam boilers. Dosage For chilled water circulating system : for initial or maintenance treatment, Add 1 gallon of lc 143 for each 200 gallons of chilled water. The treatment Level is easily tested with the drop titration nitrite test kit. Handling & precaution Irritant. Avoid contact with eyes. Avoid repeated or prolonged contact with Skin. If contact occurs, flush with water. If eye contact occurs, flush with Water for 15 minutes. Seek medical attention. Keep out of reach of Children. Refer to material safety data sheet for more specific procedures. Packaging Available in pail of 20 lt.. Can also be custom packaged.