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Aluminum water heater tanks rely on a sacrificial anode rod to soak up the corrosive elements in your water supply so the tank itself doesn't take the damage. Camco's magnesium anode rod is built specifically to fit Atwood-style aluminum RV water heaters, giving you a direct replacement when the old rod has worn down.
As the rod corrodes over time in place of your tank, it's a wear item that should be checked periodically and swapped out once it's significantly eroded, keeping your water heater protected for years of use.
Cheap insurance for a water heater tank that would otherwise cost far more to replace.
