Detail 01
66 mm length
One millimeter longer than the 65 mm. Lowers overall pitch slightly, so you push in less at the joints.

Independent shopping perspective
A 66 mm hardwood barrel for Bb clarinet. The longer option, for players who tune sharp or push in too far at the joints.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
One millimeter longer than the 65 mm. Lowers overall pitch slightly, so you push in less at the joints.
Detail 02
Not interchangeable with an A clarinet barrel. The two horns are different lengths and take different parts.
Detail 03
Needs warming before play and swabbing after. Sudden cold and dryness are what crack wood parts.
Detail 04
Upgrade pricing. Makes sense on a wood intermediate or pro horn, less so on a student plastic model.
Detail 05
No tuning ring. Your only adjustment is how far you pull out at the barrel and joints.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
If you constantly push the barrel all the way in and still play sharp, go 66 mm. If you pull way out to reach pitch, go 65 mm.
No. Buy the A clarinet barrel instead.
Yes, on pitch overall. It shifts where you sit relative to the ensemble and changes how much you pull out at the joints.
Keep it in the case at stable room temperature and humidity. Swab it dry after playing and don't leave it in a hot or freezing car.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.