Gas Cylinder Empty Indicator Ring and Storage Hanger

Printed in TPU for durabilty.  Printed on an XL to acomplish text in contrasting colour.  Add text object as part for multicolour printing

Or use slicer text tool.

Or print ring in a single colour if that's preferred.

Hanger desined to press fit on the following rack:

https://www.uline.ca/BL_3521/Gas-Cylinder-Racks?keywords=welding+tank+storage