For Mercruiser Bravo I II III X XR & XZ outdrives
Length: 7″
Width: 4″
Thickness: 1/2″.
EMP Aluminum anodes conform to Mil-Spec A-24779(SH)

also crosses with:
Canada Metals CM821630A
Performance Metals 00046A
GLM 12712
Technoseal 00815AL
Camp 817373, 821630
Reliance AMD-821630