*All new flugelhorn mouthpieces are now made in the Resonance body shape.


The FLG 4S has the same rim as our B4S S2 (and the old non-Slap B4S), which is our most popular equivalent size to the Bach 1-1/2C, Schilke 16, and other similar sizes. If you use a trumpet mouthpiece in this size range, including the Silver Monette 4 and Tradition PLUS 3, this is an excellent choice. 


For shank size info, click here [link coming soon!]

For help deciding between Classic and Prana, please see our Mouthpiece Selection Guide (in the Mouthpieces menu at the top of the page).

Resonance FLG 4S

  • Monette mouthpieces are made to order and take about 6-8 weeks to produce. The mouthpiece will ship immediately when available - even if this is ahead of the production schedule. In the event of an unexpected production delay, Monette staff will contact you directly to update you regarding delivery schedule.