Lost my little jar of Mity-Vac and 16 oz. was available on Prime when I needed it. Quality product, works with my Mity Vac tools and attachments. The only "problem" is that the can is "too big" for the small hand pump to suck hard. Once the jar was about 2/3 full of liquid by normal pumping, I was able to suck it up. Where I could use gravity it worked well. It was probably an issue with the app, not the glass.