Valve Guide, set of 3. This genuine Bach BTR internal 2 slot valve guide fits the following Bach, trumpets Not for Stradivarius. See my item 15979 for the Stradivarius valve guides.
Fits:
Model Brand Subcategory Level
BTR201 Bach Bb Trumpet Student
BTR211 Bach Bb Trumpet Student
BTR301 Bach Bb Trumpet Student
BTR311 Bach Bb Trumpet Student
BTR211S Bach Bb Trumpet Student
BTR201S Bach Bb Trumpet Student
BTR301S Bach Bb Trumpet Student
BTR311S Bach Bb Trumpet Student