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Lochinvar 100108677 is a magnesium anode rod designed to protect commercial electric water heaters from corrosion. The rod has a 3/4 in NPT threaded connection, approximately 0.84 in diameter, and a 9 in overall length. Installed inside the tank, the magnesium anode reacts with elements in the water to reduce rust and remove impurities. It is listed as an OEM replacement corresponding to part number 9001909005.
Magnesium anode rod for corrosion protection; 3/4 in NPT, 0.84 in dia, 9 in length
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