For T25 (2001-18), F30 (2002 & Newer), F40 (2000 & newer) F50/F60 (2001 & newer)
Diameter: 3-3/4″
EMP Aluminum anodes conform to Mil-Spec A-24779(SH)

also crosses with:
Canada Metals CM67C-45371-00AL
Performance Metals 00367A
GLM 12845
Technoseal 01141AL