The Brass Ark is the West Coast dealer for Hagmann valve kits. We can order and install any Hagmann valve on your trombone. If you are interested in this service. Please Send me an email for price quotes
Hagmann valves are available with a variety of configurations and valve wraps. I'm happy to discuss the options with you and give my recommendation on which valve would best match your instrument. Additionally, valve wraps are available in yellow brass or gold brass.