John Packer 4B Cornet Mouthpiece

4B Cornet Mouthpiece square

John Packer 4B Cornet Mouthpiece

Code: 202947

A noticeable step up from the ‘600’ series of JP brass mouthpieces, this new and improved range benefits from a higher overall standard of build quality and precision. The quality of silverplating on these models has also been significantly improved. Aimed at progressing players, these mouthpiece provide an affordable step-up option for players looking to upgrade their mouthpiece.

This John Packer 4B Cornet Mouthpiece features a medium cup and an inner diameter of 16.40mm. This mouthpiece is a very popular, good all-around mouthpiece for the cornet, and is one of our best sellers.


  • Inner Diameter: 16.40mm
  • Cup Size: Medium
  • Finish: Silver Plated
  • Suitable For: Cornet


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