Propane Tank Bottom Ring and Third Ring for 180mm beds

Propane tank ring complete or a third of a ring (print 3 thirds for use with 180mm bed printers) to cover the metal base and prevent it from contacting your deck. 

These should fit tightly with a press fit.

Only the third version has been tested and worked with a 15/20 lb and 30 lb tank (should work with 40 lb tanks but YMMV).