Holton Collegiate B490RS 4 Valve Euphonium Spring and Felt Kit Valve Kit,
$20.99
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Brazilian made Holton Collegiate B490R Valve Spring & Felt Kit, 4 Valve. 4 piston springs (D18mm x L48MM), 4 valve stem felts, 4 stem pads (replaces cork). Not for a Conn-Selmer/Holton manufactured euphonium (serial # starts with BC). See my item ID# 28093 for valve guides.
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