B&S 3100 Tuba
F key.
Bore: 19-21mm / 0.748"-0.827".
Bell: 420 mm / 16.535 ".
6-rotor (4 + 2).
4th "outstanding" pump.
Lacquered.
Bag included.
The B&S 3100 is a more European style F with six valves (4+2) with a slightly smaller bore than the 3099.
F key.
Bore: 19-21mm / 0.748"-0.827".
Bell: 420 mm / 16.535 ".
6-rotor (4 + 2).
4th "outstanding" pump.
Lacquered.
Bag included.
The B&S 3100 is a more European style F with six valves (4+2) with a slightly smaller bore than the 3099.