Atwood Hot Water Cylinder Replacement Magnesium Anode Rod

Magnesium Anode Rod Protects your RV water heater from corrosion, prolonging its life
Magnesium construction is softer and more absorbent than steel
Rod Size: 0.5" diameter x 4.5" long ,Pipe Thread: 1/2" NPT
For Use With: Atwood Water Heaters ( Magnesium Anode Rod anode is equivalent to part number 11553 )
Inspect regularly, rods should be replaced yearly or when the corrosion has eaten approximately 75% of the rod's mass