I am thinking 2.5 and or 5# for both. I took a count the other day an we already have 7 of the non re chargeable type ranging in age. Typically, the gauge on these things will go down into the yellow or red range yet still have a full charge. I know the Coast Guard is very strict, in the red and your dead. They even acknowledge that most are probably still fine but they can only go by the gauge.
Point being I am tired of buying throw away models and I want a Halotron as well as ABC anyway.
This also raises the question about vehicle inspections in the club. What is the policy on extinguishers as it pertains to where the gauge reads? I was pulled up by the Marine Patrol on my boat (water Nazis is what we called them) and my extinguisher was a hair into the red, and he pulled out his book to write me up and fine me. I talked him into a bet, I'll pull the pin and shoot it, if it works no fine, if not I get a fine. Either way I need a new one. It worked perfect. No fine for me!!!!