This is a replacement clear tube for Kayfun lite or Kayfun 3.1.
This is not made by Makrolon or some calls it M tank. We call this Ultra tank. This is made by another factory to be made more available since M tanks are so hard to obtain and expensive. We want everyone to be able to replace when their tube crack without trying to hunt M tanks down like hunting down a mod.
(Compatible with Kayfun V 3.1 ES and Kayfun Lite)
This project is scheduled to ship on 12/2/2013 to supporters.