18mm BOTTOM VALVE CAPS 5000 SERIES
These 18mm deep bottom valve caps are made in the 5000 series style in polished lacquered yellow brass. They will fit ANY CarolBrass trumpet, cornet, flugelhorn or pocket trumpet, but the knurling pattern matches the 5000 series caps.
Weight is 1.3 oz. Compare to 0.533 oz. for standard 5000 Series weighted bottom cap. Knurled grip is the same vertical pattern used on 5000 Series caps, so if you want to install just one on the 3rd valve for instance, it will match.