>>10320481>They're 5-7 pounds.To be fair thats a pretty big one. It probably weighs 20lbs.
I'm pretty sure this is the exact model. The ones with the oversized nozzles are CO2 extinguishers that make the big white clouds, thats how you can narrow it down.
https://amerexfireextinguishers.com/products/amerex-20lb-co2-332?variant=29047988945 