Reply To: Old ball style fire extinguishers

[sydinnj]

To be legal for a boat it must be USCG approved and you have to be able to read the approval number. Yes any extinguisher that is in good usable condition and is USCG approved and when you read the approval part it usually says only when used with part number (then has a number) this other part is the bracket it came with. and it has to be mounted in a readily available spot and not in the engine compartment
For the classes

A wood paper, anything that leaves an ash
B gas, oil grease burning liquids
C electrical fires
D burning metal