Why does my transition module no longer tighten?
The transition module can become stripped from over tightening or cross-threading. To prevent any damage from happening, we recommend making sure the transition module is always secure and remember to remove the cartridge before attempting to unscrew this piece. Unfortunately, damaging these threads isn’t covered under warranty. If you do have issues, please contact our customer service department and we’ll get you squared: firstname.lastname@example.org