Valve Springs, Conn, King, Sousaphone (not 20K), & Marching Tuba, Set of 3 or 4

Conn & King, Sousaphone, & Marching Tuba, Valve Spring, Set of 3or 4.  Conn-Selmer SU01051, D16.7mm x L48mm.  Not for 20K or 22K Sousaphones, see my item ID# 16128

Fits many Conn & King sousaphones & tubas (not Conn 20K or 22K sousaphones).   For additional springs, see my valve spring reference chart.