Water Key Natural Spit Valve Cork, 3/8" x 3/16", straight or tapered, You Choose Size:3/8" x 3/16" tapered set of 2 Yamaha euphonium genuine water key

Yamaha euphonium genuine water key spring screw and cork kit for older 1976-1986 YEP-211 type euphonium tuning slides with 10x3mm cork

Not for Stradivarius

smaller size D9

2103F - 3B w/ F attachment King Tenor Trombone

See my item ID# 16691 for a standard Yamaha trumpet soft kit or 28346 for a premium complete hard kit

Water Key Natural Spit Valve Cork, 3/8" x 3/16", straight or tapered, You Choose Size:3/8" x 3/16" tapered set of 2 Yamaha euphonium genuine water keyNatural water key cork. Most common for King horns, and many others. 3 8" x 3 16" straight or tapered. Contact me if you wish to verify your model's fit or you need other parts.