With the Vision temp stik I have gotten almost 9 hours out of my Inspo scrubber although I wouldn't try that on a deep deco dive. This is running it 5-10 minutes into the scrubber flashing warning at a depth that was in the 20 foot range.

I normally bin the sofnolime at about 6 hours so I don't have issues with subsequent dives but at that run time the bar graph usually shows a ways to go still.

I think they make a Mini-Meg too.