Bb Clarinet Mouthpieces Boehm system Vandoren СМ4088 B45 "13 Series" with beak versions Profile 88. The universal mouthpiece. With an intermediate tip opening and a medium-long facing, it is appreciated by most clarinetists.
The “13 series” mouthpiece was developed specifically for American clarinetists using A440 pitch.
A=440. The Beak: Profile 88. Tip Opening: 119.5 (1/100mm). Medium Long Facing. Works best with Vandoren #2,5 - #3,5+ Reeds.