ROTAX Trombone single valve FULL FLOW

ROTAX Trombone single valve FULL FLOW


If you are not in the mood for large oversized trombone valves, then you must have the ROTAX Full-Flow valve installed. The ROTAX valve fits into every trombone! It is the preferred valve for many instrument manufacturers. We supply individual valves but also complete kits. Following bore sizes are available: 14,2mm/15,0mm/15,2mm. Contact us for specialty orders and delivery time!  Please send mail to:

If you are looking for a different item configuration, shipping options, or a different method of payment; please contact us via email at

© 2020 by Willson Instruments International.  Created by Dr. Richard Demy

Willson only makes professional euphoniums and tubas.  Don't settle for good enough, pick a Willson. 

  • Facebook Social Icon
  • Instagram Social Icon
  • Twitter Social Icon