Anode Rod Atwood - Protect your rv water heater from corrosion
How It Works:An anode rod protects your RV water heater from corrosion by attracting corrosive elements in water, so they attack the anode rod rather than the interior of your RV water heater's tank. Simply remove the plastic drain plug and insert the unit.
How To Replace: When replacement is necessary, unscrew the old one and insert the new one. These are easily replaced and should be checked every six months.