Wet chemical fire extinguisher, Class AB, 1:B rated, 12.69oz steel can, red.
Spec Sheet: Allstar Spec Sheet
Compatibility
For use in racing vehicles and pit areas per its Class AB, 1:B rating.
FAQ
What size is this fire extinguisher?
ALL10503 is a 12.69oz steel can.
What class and rating does this extinguisher have?
It is Class AB with a 1:B rating and uses a wet chemical agent.
How does this differ from ALL10504?
ALL10503 is the smaller 12.69oz can, while ALL10504 is the larger 23.8oz can; both share the same Class AB, 1:B rating and wet chemical agent.

