If you don’t change the anode rod, then yes they are prone to rusting out. And they can wear out over time just like anything else.
If you’re gonna replace it check out the tankless water heaters. There are some that are a direct replacement for the Suburban 6 gallon unit.
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2007/21 TM 3326 (Pride of the Fleet)
2000 2720SL (Rebuild Project)
2002 2619 (Parts TM)
SMARTER THAN GOOGLE!
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