I hear ya! so many times I've heard, or experienced situations where
"man, I coulda saved that machine if I only had an extinguisher"
For me, I had 2 tractor fires I was able to put out with dirt or snow scooped up with my hat.. a hay baler I put out with a 12 pack of soda... and 1 combine fire that I used an actual extinguisher (all with success)
I prefer the 'pull pin and squeeze lever' style!!
I could convince my wife we NEED the extinguisher pictured, for $4500... But she doesn't need to know it just happens to be attached to a KB2!