- Tweak Enhance and ReFocus amplifiers come standard with left and right 2B thin tubes that fit most users.
- Tubing should be changed 2 to 3 times per year
- Made of soft, hypoallergenic silicone
- Easy on and off
- The replacement tips and tubes offered here are the most commonly used. The tubing is the screw-on type that is used for Enhance and ReFocus. If you don’t see what you’re looking for here, call us 1-888-815-3240.