Genuine Conn 12J, 12JSP, OEM Tuba 3 valve tune-up kit. Comes with 3 each top washers, .094 stem & finger button felts, .196 thick stem felts, springs, & 2 water key corks. All Conn-Selmer components, no aftermarket in this kit. See my item16056 for the metal screw in Valve guide key. For a 12J recording bass, with detachable bell see my felt kit 16595.
