Ninja Fill Valve Cover

I wanted a simple fill valve cover for my Ninja SL-50 compressed air tank. I went ahead and made a simple design that covers the whole fill valve and stays in place in pretty well.

I have a beginner printer, so some of my settings had to be tweaked to get it to turn out correctly (due to the widths of the design). I had to up the infill to 50%+ (not a problem since the infill was mostly unnecessary) in order to get the parts the correct dimensions after being printed.