Is there a different Dreamware elbow for use with heated tube?

[Slats]

Is there a different Dreamware elbow for use with heated tube? I have the regular elbow but couldn't get it to work with heated hose.

[Pugsy]

No difference in elbows for the different hoses.
Are you sure something isn't stuck either in the hose or has come off the elbow on the mask and is still in another hose?

Usually when a hose won't attach to a mask either there is something stuck in the hose from another mask or there is a piece missing from the new mask.