There's also an Airgas store in that vicinity, it's right around where Hwy 280 ends on its north side, nearish the NB HQ building. You can get to it from 280 if you're traveling north, or from 35W & C exit and backtracking. I kind of quit using them because they were about 1 time in 3 being out of tanks. After I had to next drive to Linde a few times, who always had stock, I just started going straight to them instead. Airgas was pretty close to that price IIRC and so I started to think of it as normal. Silly enough I never bought CO2 at NB or MW stores in town. In retrospect - duh!