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A Magnesium anode used more in fresh water applications, 1" NPT with 36" long magnesium rod. Comes with brass plug.     

A Magnesium anode used more in fresh water applications, 1" NPT with 44" long magnesium rod. Comes with brass plug.     

A Magnesium anode used more in fresh water applications, 1" NPT with a 6" Magnesium rod.  Comes with brass plug.             

A Magnesium anode used more in fresh water applications, 1" NPT with 72" long magnesium rod. Comes with brass plug.     

A Magnesium anode used more in fresh water applications, 1" Diameter rod x 48" long magnesium rod with a 6 foot copper wire lead coming out the end for grounding Please email or call for other...

A Magnesium anode used more in fresh water applications, 1.5" NPT with 8" long magnesium rod, custom sizes also available, please contact Rotometals    

Magnesium Pencil Anode 1/2" NPT x 10" long used more in fresh water applications, such as water tanks.    

Magnesium Pencil Anode 1/2" NPT x 5/8" Rod Diameter x 12" Length. Typically used more in fresh water applications, such as water tanks.    

Magnesium Pencil Anode 1/2" NPT x 14" long used more in fresh water applications, such as water tanks.    

Magnesium Pencil Anode 1/2" NPT x 4" Long used more in fresh water applications.    

Magnesium Pencil Anode 1/2" NPT x 6" long used more in fresh water applications, such as water tanks.    

Magnesium Pencil Anode 1/2" NPT x 8" long used more in fresh water applications, such as water tanks.