Slightly wider for a better grip - otherwise identical to my earlier handle ( https://www.thingiverse.com/thing:3642046 )
I used to got really annoyed after carrying my Full (& Heavy) 8.5Kg Gas Bottles 100m from the Servo or Bunnings to the Car and then downstairs to our BBQ.
The design of these gas Bottles is, IMHO, cheap CRAP & designed to hurt fingers and, as an afterthought move gas around - anyway, this is my solution.
Geoffs Gas Bottle handle just clips on, and is easily removable, and makes carring Gas Bottles a lot easier
Printed with 0.4mm nozzle in ABS, but just about any plastic should work OK