For For corrosion protection of Shafts and running gear.
Shaft Diameter (ID): 3″
Length: 3-3/4″
Outside Diameter (OD): 4-3/4″
EMP Zinc anodes conform to Mil-Spec: MIL-A-18001K

also crosses with:
Canada Metals CMX13
Performance Metals C3000Z
GLM 26624
Technoseal 00521USA
Camp X-13
Reliance MDX-13