The 0.750" x 19-3/8" Magnesium Anode Rod prevents tank corrosion. It acts as a sacrificial material to protect the exposed steel within the water heater tank.
I found this to be a great way to increase the life of water
Good for 20 gallon water heaters
Bucky
Tucson
1 years ago
Verified Buyer
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I'll be buying more of these
Great replacement for 20 gallon water heater
Bucky
Tucson
1 years ago
Verified Buyer
Was this review helpful to you?
I'll be buying more of these
Perfect for 19-20 gallon water heaters.
Bucky was
Tucson Arizona
2 years ago
Verified Buyer
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