If you are trying to assemble a heater with an ebanger and it either does not fit easily or appears significantly loose, contact us before proceeding. 
It is best to get all quartz ebanger parts together paired as a set.
There are too many steps involved in turning raw heating elements and raw tubing into finished and 'perfectly' matched parts to always get it right.
We are using custom molds and strictly quality control procedures to attempt to standardize these as much as possible.