I love the design by P.Tech, but also found features on other containers that I wanted to implement in this one. The added tower in the middle spreads out the desiccant to use less (you could print the container smaller too using the .scad file they provided). The main reason I liked this new design is I can fill it and see the status of the color changing desiccant without opening the vacuum bag as long as I used a somewhat transparent filament. Since I am not a CAD person, I did not know how to do this with the cad files provided so I jerry rigged one together. It prints very well other than 1 string of overhang in the middle of the tower. I just pulled it out after the print was done. Maybe someone who is better at CAD can create a version that is adjustable like the .scad version.