This 17 lb. High Pure Magnesium Max Mag Classification anode comes with 37 lbs of powdered back fill consisting of 75% Gypsum, 20% Western Bentonite and 5% Sodium Sulphate. The High Pure Magnesium Max Mag is 99% pure magnesium. Each anode has a plated steel core with 14 feet of #12 THHN insulated lead wire attached with silver solder. Applications include UST, Pipe, AST bottoms and other carbon steel in contact with the soil.
