Cry-Ac Tank Ring for Nitrogen Canister

The top ring piece for a Cry-Ac liquid nitrogen canister. Don't buy a new $800 bottle if yours breaks, just print this with regular supports on a high fill density for $.25. You might have to glue it to the canister if you don't want it to be able to rotate. Or you could try shrinking the model 1-2% and see if that works.